Ep 55 Rocky Mountain spotted fever: The tick must be destroyed!

Ep 55 Rocky Mountain spotted fever: The tick must be destroyed!

Released Tuesday, 4th August 2020
 4 people rated this episode
Ep 55 Rocky Mountain spotted fever: The tick must be destroyed!

Ep 55 Rocky Mountain spotted fever: The tick must be destroyed!

Ep 55 Rocky Mountain spotted fever: The tick must be destroyed!

Ep 55 Rocky Mountain spotted fever: The tick must be destroyed!

Tuesday, 4th August 2020
 4 people rated this episode
Rate Episode

Episode Transcript

Transcripts are displayed as originally observed. Some content, including advertisements may have changed.

Use Ctrl + F to search

0:01

On July nineteenth, during dinner,

0:03

announcement was made of the departure of Sister

0:05

Rogers after an illness of eight days.

0:08

This was the beginning of a great time of sorrow

0:11

for Bethabara and for me. A

0:13

strange kind of fever had broken out

0:15

amongst us, and most of those living in

0:17

Bethabara had it in more or less

0:19

a serious form. My doctor

0:21

was much worried, for the usual treatment for fever

0:24

gave little relief. Of those

0:26

who left us, Sister Rogers was the first,

0:28

but not the last. Next

0:31

came Catherine's Sidle, and it seemed

0:33

almost impossible that only a few

0:35

short weeks before she had traveled south

0:37

with us. Her husband missed her

0:39

sadly, and it was only a few days

0:41

later that he returned from a visit to Bethania,

0:44

oppressed by the feeling of utter weariness,

0:47

which we were learning to recognize as the first

0:49

symptom of the disease. He did

0:51

not seem very ill at first, but when

0:53

hope was expressed for his recovery, he shook

0:55

his head.

0:56

And so it was.

0:58

And then my Martin, perhaps because

1:00

of his unremitting efforts for others, he

1:03

was seriously ill from the first he

1:05

saw what was coming. His

1:07

pain was intense, as it always was

1:09

in the earlier stages of the fever. His

1:12

request was stay by me and

1:14

hold my hand, hold it tight. And

1:16

when the fever mounted, when the terrible

1:19

red splotches broke out on his body, when

1:21

delirium came, he still felt

1:23

my presence and was quieted as I

1:25

held his hand in mine spoke gently

1:27

to him or saying some of our best loved

1:30

hymns. Then he became unconscious

1:32

of pain or weariness, but we were still

1:34

hand in hand when the call came that took

1:37

him back to the eternal home. Others

1:39

were laid to rest beside him, but I was

1:41

stunned and rebellious, and nothing seemed

1:43

to matter much. The fever that

1:45

took Martin from me persisted until late

1:48

in the fall, though with decreasing violence,

1:50

and we heard that it was prevalent in many parts of

1:52

North Carolina and Virginia.

2:37

WHOA, Yeah,

2:40

that's a sad story. It's

2:43

really sad.

2:44

So that is from

2:47

an account from seventeen fifty nine,

2:50

and I found it in a paper referenced

2:52

in a book that I read. The paper

2:54

is titled a seventeen fifty nine spotted

2:57

fever epidemic in North Carolina.

3:00

Before we go any further, it's

3:03

debated this, Like the whole purpose

3:05

of this paper is to, you

3:08

know, say, this might be an instance of

3:11

spotted fever or Rocky Mountain spotted fever.

3:14

It's not certainty, but I.

3:16

Liked the account so much that

3:18

I wanted to read it.

3:20

It was a really good account. Right,

3:22

it's heartbreaking by

3:24

everything that you that was

3:27

in that account. It certainly could be

3:29

Rocky Mountain spotted fever.

3:31

There are a few things that are like, as we'll

3:34

talk about that seem a little

3:36

bit off to me. I mean the fact that, like, was

3:38

it contagious. It seemed to be all

3:40

at once. It's not contagious anyway.

3:43

So yeah, okay, maybe

3:45

we should maybe we should

3:48

pump the brakes. Yeah, because

3:51

Aaron, what are we this

3:54

is this podcast will kill

3:56

you.

3:57

I'm Aaron Welsh and I'm Aaron Olman Updike.

4:00

Welcome. Wow, we did

4:02

that all weird and backwards. Yeah, that

4:04

was backwards, but we're professionals.

4:07

Oh totally, We've done this before. We've

4:09

done this before. Fifty oh

4:11

my lost count already. This

4:13

is fifty five

4:16

or six? No, yeah,

4:18

I thought it was fifty two. Antibiotics

4:22

was last week?

4:26

Oh gosh, Well, this

4:28

week we are covering Rocky

4:31

Mountain spotted fever or Rickettsia

4:34

RICKETTSI. I yes, spotted

4:36

fever group Rickhetsia.

4:40

I am very excited about

4:42

this episode, Aarin.

4:44

I didn't start out that way, but

4:48

I've come around and now I'm

4:50

thrilled.

4:51

I have known that this was going

4:53

to be a great episode since we

4:55

literally decided to make a podcast.

4:57

Okay, oh okay,

5:00

and I guess the two reasons why?

5:02

Uh okay, yeah, please guess them.

5:04

Are there two reasons why? First to allow, but

5:07

please guess them? Okay.

5:10

Number one is because of the Quarantini

5:12

name. So what's our quarantini name? Aaron,

5:16

that's segue. Oh

5:18

my god, we're being so obnoxious. Okay.

5:21

Our quarantini is cold

5:25

is the Rocky Mountain spotted Fever.

5:28

That's the most clever name that we could come up with. It's

5:30

so good. We came up with that quarantiny

5:34

literally the same moment that we came

5:36

up with a podcast idea.

5:38

Yeah, it was on our list

5:40

that very first day original at

5:43

the picnic of like what

5:45

are we or at the barbecue?

5:47

Yep? Exactly what are the quarantini names? So

5:50

in this quarantine, of course you

5:52

have to have Core's light not sponsored.

5:57

Because the logo is called as the Rockies.

6:00

Just in case anyone has forgotten.

6:02

And well, basically we're making a shandy out

6:04

of it. Okay, yeah, super simple,

6:07

delicious. We'll post a full

6:10

recipe for that quarantine as well as

6:12

a non alcoholic plus see Burta

6:14

on our website. This podcast will kill you dot com

6:16

and all of our social media channels, Yes

6:19

we will. So, Aaron, what's the second reason

6:21

that you knew I was going to be excited

6:23

about this episode because

6:26

we.

6:26

Get to tell the story of Oh

6:28

Brett possibly

6:31

having Rocky Mountain spotted fever.

6:35

Genuinely forgot about that. I

6:37

mean I didn't forget about that. I just I forgot

6:39

that aspect of it.

6:41

I can't rememberative moment of

6:43

our friendship.

6:44

Oh, it absolutely

6:46

was. I will never forget the

6:49

moment. Okay, I

6:51

just meant I forgot that we're going to get the opportunity

6:53

to talk about it.

6:54

Oh right, right, right, Okay,

6:56

So why did you think it was going to be such

6:58

a great episode From the.

6:59

Very Oh mostly

7:01

the quarantine name. Oh yeah,

7:04

yeah, yeah,

7:06

excellent. But as

7:08

I was researching for this episode, I

7:12

you know, I also was having a

7:14

really busy week and I was like, oh gosh,

7:16

I have to do research. But then the very

7:18

first paper that

7:21

I came across to do research for

7:23

this episode, the first line

7:25

of the biology section, I was

7:27

like, Oh, this is this is gonna be a

7:29

good one. Aaron. I had to google two

7:32

words in the first sentence. What

7:35

were they? Fastidious

7:37

and pleomorphic? Ooh

7:40

yeah, it's a good sentence. I'll read it to you later.

7:44

Also, I have to say that the

7:46

book that I read, the very first

7:49

line, like of the chapter,

7:52

so you know how like chapters start with like a quote

7:54

from whatever.

7:55

M hm. It literally it

7:57

made me go, oh, this is gonna be

7:59

good, and I put it in my notes. Look

8:02

at us both we are the same person.

8:08

Oh man, Oh my gosh, that's

8:10

really funny.

8:11

So do we get to just like, you

8:13

know, do the episode now or do we have that

8:16

business.

8:18

We've got new merch

8:20

coming out soon. Yeah, keep

8:22

an eye out for that.

8:24

It's very literally the most

8:26

exciting thing.

8:27

We love it. Yeah, love love

8:29

is not a strong enough word. What's

8:32

a stronger emotion, really

8:37

love? Okay,

8:43

I don't think we have any other business to attend

8:45

to, Aaron, So let's let's

8:48

take a short break and then get into the biology

8:50

of this.

8:51

Oh my gosh, let's do it.

9:26

Okay, So here it goes quote ricketsia

9:30

ricketsi I is a fastidious

9:33

small pleomorphic gram

9:35

negative coxo bacillis. Okay,

9:39

okay, So I

9:42

feel okay that description.

9:45

It's why people don't like reading scientific

9:47

papers, oh for sure. And

9:50

I the reason that

9:52

it made me excited for this episode

9:55

is because I was like, I really like that.

9:58

This is how if you read that, you'd be

10:00

like, oh snooze, I don't want

10:02

to learn anymore. So now I'm going to take

10:04

that and make it a lot more exciting and

10:07

tell you why you should be excited about rikkeetsia

10:09

ricketsia I. Okay, oh

10:11

yes, please, Okay. So here's

10:14

what that boring sentience

10:17

means. We're talking today

10:19

about a very very

10:22

tiny, like so tiny that it

10:24

lives inside of our

10:27

cells, bacterium

10:32

that is very difficult

10:34

to grow in medium. And the reason it's

10:36

difficult to grow is because it lives inside

10:38

of cells. Is that the fastidious

10:40

part. That's what festidious means.

10:42

Yep.

10:42

Okay, when you're talking about

10:45

fastidious organisms, okay uh.

10:48

And the pleomorphic part means that not every

10:51

single coxobacillas, not every single

10:53

cell looks exactly like every

10:55

other. So they kind of when you look at

10:57

them stained inside of another

10:59

animal's cell, they look like a bunch

11:01

of little, little and bigger

11:04

dots, if that makes sense. Okay,

11:06

why that's a really good question that

11:08

I don't know, because they divide the same

11:10

way that anything else divides, right like

11:12

just by sciently. That's

11:15

fascinating, all

11:17

right. So let's get into the disease

11:20

that Ricketsia ricketsiai

11:23

causes Rocky Mountain spotted fever. So

11:26

this is a tickborn disease. OKAYO,

11:31

we get excited about these. So

11:34

humans get infected. Humans are essentially

11:37

dead end hosts, okay,

11:40

So we're not part of the normal life

11:43

cycle necessarily of this pathogen.

11:46

But humans get infected when we

11:48

are bitten by an infected tick.

11:51

Specifically, in a number

11:54

of different species, but most commonly

11:57

in most of the US, it's derma center

11:59

very abolises. That's the dog

12:01

tick, the American dog tick. But

12:04

there's also the Rocky Mountain wood

12:06

tick Derma center andersnii.

12:10

The those live in the Rocky Mountains in

12:12

Canada, the brown dog

12:14

tick rifacephalous

12:17

sanguinosis noeus

12:21

Rifocephalus sanguineous in Mexico,

12:24

and of course aarin Ambloma

12:27

cayanens or Amblioma

12:29

mixta. I was waiting for you to go

12:32

correct, correct, correct me as.

12:34

I got corrected at an academic conference.

12:37

Yes, it is now amblomicayan

12:40

and say species complex?

12:42

Okay, great, and

12:44

that's in Is that throughout Central America?

12:47

That species complex? Yes?

12:49

Central? Yeah, Central and South America?

12:51

All right, So now we also

12:54

know where this disease is found, right, This

12:56

is a disease of the New World essentially,

12:58

so North America, Central America and then

13:00

down into South America. Okay.

13:04

And like many other tickborn diseases,

13:07

in order to get infected, the tick does have

13:09

to be attached for a relatively long

13:12

period of time, usually a

13:14

minimum of four to six hours, but sometimes

13:16

up to twenty four hours. And

13:19

the reason that the tick has to be

13:21

attached for a long period of time

13:23

is because although these bacteria

13:26

are already in the salivary glands

13:28

of the tick. When

13:31

they're in the tick, I get I'm getting

13:33

excited. When

13:35

they're in the tick, they're basically

13:37

not in a virulent state,

13:41

right, So then they have to bite a

13:43

host and then something happens

13:45

within the salivary glands of the tick

13:48

to reactivate these

13:51

bacteria and make them

13:53

virulent, make them able to actually

13:55

infect our cells.

13:59

It's so.

14:02

Amazing, and when weird don't

14:05

know how it happens, and

14:07

it also like, oh my gosh, yeah,

14:09

yeah, you're right. This is a thrilling, a

14:12

thrilling disease.

14:12

Absolutely thrilling. Okay that is

14:15

I didn't know that either before researching

14:17

this, and I think that's just super fascinating.

14:21

Okay, So then you have activation,

14:25

it gets somehow becomes

14:27

virulent again, and then it will exit

14:29

the salivary glands and then enter underneath

14:33

our skin. Okay. So then,

14:35

because we know that this is a life cycle, right, how

14:38

does the tick then get infected? How do we end

14:40

up with infected ticks? As it turns out,

14:43

there's two ways that a tick can

14:45

become infected. One

14:49

one is the way that we know

14:51

of ticks getting infected from past tickborn

14:54

disease episodes, and that is that a tick

14:57

takes a bite of an infected host

15:00

and then in that blood meal they

15:02

suck up some bacteria,

15:04

okay, and then those bacteria

15:07

go on to replicate, and like

15:09

many tick born diseases, once

15:12

a tick is infected, they

15:14

remain infected for their entire

15:16

life. So even if they get infected

15:18

as a larvae, then when they

15:21

transition to a nymph, they remain infected.

15:24

When they transition to an adult, they remain

15:26

infected. But here's where

15:28

it gets interesting. I

15:31

know where you're going. Infected

15:36

female ticks transmit

15:40

transoverially and

15:42

lay infected eggs,

15:46

so you can have larval

15:48

tick bombs that burst out

15:50

already full of Ricketsia just

15:53

waiting to infect their first blood

15:55

meal host. Let's put an

15:57

asterisk on this. I'm great. Well,

16:01

I actually have a question for you

16:03

about this, okay, because

16:05

my understanding from what I read, and you

16:08

are much more of an expert if you guys

16:10

didn't know listeners. By the way, Aaron

16:12

literally did her PhD research on

16:15

Ricketsias in Central America.

16:18

So on on pathogens

16:20

in tics in Central America, which happens

16:23

to.

16:23

Be a lot of Rikkeetzias. Did you

16:25

hear her trying to ask risk her way out of that.

16:28

Well, I'm not an expert, okay,

16:33

So my question is my understanding is

16:35

that for humans

16:37

it's really only adult tics

16:39

that go on to infect humans. Is

16:42

that just behavioral? Is that just because

16:44

these ticks species don't tend to bite us

16:46

unless they're adults, or is that something

16:49

to do with infectious dose? What

16:51

is why is that? I

16:53

don't I mean, honestly, I don't know. Possibly

16:57

behavioral. I mean, so.

17:00

Different ticks species will have different

17:02

host preferences overall, So

17:05

like this tick species might like you

17:07

know, deer and mammals

17:11

more, and this tick species might like reptiles

17:13

more. But even within a tick species,

17:15

you see a lot of differences in terms of like

17:18

what they like to feed on at different stages.

17:21

And so there's a trend.

17:23

It's not one hundred percent, but there

17:25

is a trend where as

17:28

you go to the older life

17:30

stages, so like from larva to adult,

17:33

the host range narrows. And part

17:35

of that is like a mate seeking phenomenon,

17:37

because if you're trying to find a mate,

17:40

you want to be like, all right, I

17:42

want to get on this horse because I know

17:44

that other you know, ticks,

17:47

adult ticcks of my species are going to be on this horse,

17:49

but like you might not be like, oh or

17:51

maybe that squirrel or maybe that

17:53

monkey or maybe that sloth. Like

17:56

you're going to be focused in, right

17:58

because anyway, So it might

18:00

be behavioral as far as the

18:02

bacterial load overall across the

18:04

life stages, that might be a factor. But

18:07

another factor might be that

18:09

as you're in, if you're an adult tick, you've

18:12

taken two blood meals, and so just

18:14

the chance that you have acquired the

18:17

pathogen is greater than if

18:19

you have taken just one blood

18:21

meal.

18:22

It's an imful tick, right, that makes sense.

18:24

Yeah, But the asterisk that

18:26

I want to add to the trans of aerial

18:29

transmission is that it's

18:32

fairly rare, oh for

18:34

Ricketzia ricketsii, Like it doesn't happen

18:36

all that often. And actually the

18:39

Racketzi ricketsii I negatively

18:41

affects the reproductive output of the

18:43

tick.

18:44

The female six. Yeah,

18:46

so that's I mean good news in a way.

18:48

So if you look at horizontal

18:50

transmission, so getting it from an infected

18:53

animal versus

18:55

trans of aerial transmission or vertical transmission

18:57

getting it from mom, it's much less

18:59

like to get.

19:00

It from mom.

19:02

And then the third way that might be possible

19:05

is co feeding.

19:07

Oh does cofeeding

19:09

mean the same thing for ticks as it does for kissing

19:11

bugs.

19:12

Probably they're like two bugs feeding close

19:14

to one another and then they oh

19:17

what does it mean for.

19:18

Kissing Sometimes the adult

19:20

kissing bugs will come back to the nest

19:22

and then the nymphs will feed on

19:25

the adult like from their

19:28

blood meal. Beautiful

19:30

and horrifying. Yeah it is.

19:33

That's that's my esthetic, literal

19:37

lifeblood co feeding.

19:38

So then if you have say an infected adult

19:41

feeding very close by to another

19:44

uninfected nymph, then

19:47

they could that's fascinating.

19:49

Oh yeah, that happens with

19:52

tick born encephalitis virus as well.

19:54

I think occasionally you get you do get

19:56

co feeding events, and this is really important when

19:58

you have cocurrent

20:02

stages existing or

20:04

emerging. So if you have larvae that are emerging

20:06

at the same time as a.

20:07

Nymphs, yeah, then yeah,

20:10

very cool. Well

20:12

that was very fascinating. Okay, so

20:15

now we understand fully the

20:17

transmission dynamics

20:20

of this bacterium. So let's

20:22

talk about what happens if you

20:24

get infected. Okay, what

20:26

are the symptoms. It starts

20:29

with aaron wait for it,

20:32

with a fever. Oh

20:37

okay. So in general,

20:39

the incubation period after you get

20:41

infected is about seven days

20:44

on average, it can range from about two

20:46

to fourteen, and the first symptom

20:48

is often a rather sudden

20:50

onset of fever, pretty

20:53

substantial malaise and body

20:56

aches, and very commonly

20:58

a headache, which very often people

21:00

will describe as the quote worst

21:02

headache they've ever had. Is what one

21:04

paper said. Interesting,

21:07

I will say in med school, we don't learn

21:10

Rocky Mountain spotted fever as the worst

21:12

headache you've ever had. You learn that for a

21:14

brain bleed. But that's okay.

21:18

The point is it's a very severe headache. It's

21:20

not just like I feel a little dehydrated

21:22

headache. It's like a bad headache. Okay,

21:25

okay. You can have a

21:27

lot of other pretty non specific

21:30

symptoms as well, things like anorexia

21:32

because your stomach doesn't feel good, anarexia

21:35

meaning you just don't want to eat, not like

21:37

an eating disorder, nausea,

21:40

vomiting, abdominal pain is fairly

21:42

common. So, especially

21:44

early on in the course of this disease,

21:47

it's very potentially

21:49

easy to mistake it for a kind of

21:52

viral syndrome. Okay, you

21:54

feel crappy, but it's very non

21:57

specific. And then comes

21:59

the third of what's

22:01

often called the classic clinical

22:03

triad of rocky mountain

22:06

spotted fever. There's actually

22:08

two different triads, which I think is silly

22:10

depending on what paper you read. Okay,

22:13

within two weeks of a tick bite,

22:17

almost always, in like eighty

22:19

to ninety percent of cases, you

22:21

see this third symptom,

22:24

and that is the

22:27

spots of rocky mountain spotted

22:30

fever. There we go. It's

22:32

a rash. This rash

22:34

starts out as small what are

22:36

called macules, which just means flat

22:39

red spots, little ones,

22:41

maybe like less

22:44

than the size of your pinky nail.

22:48

And these tend to start on your wrists

22:51

and your ankles. They're

22:53

a blanching rash. It doesn't itch,

22:55

usually it doesn't hurt. So

22:58

if you press on them, then the co would drain

23:00

from them. Okay, oh that's what a

23:02

blanching rash. Wow, yeah,

23:05

cool new word. New word. Then

23:07

this rash, which starts on your ankles

23:09

will begin to spread. It will spread

23:11

up approximately like up your arms

23:14

and up your legs to your trunk. But

23:17

It also spreads down down

23:19

to your palms and your souls,

23:22

which you may remember from our episode

23:24

on syphilis is a very uncommon

23:27

place to have a rash.

23:30

The palms of your hands and the soles

23:32

of your feet really don't get

23:34

rashes except in a

23:37

few infectious diseases.

23:39

Okay, it was syphilis, syphilis, hand

23:43

foot mouth Cocksacki virus,

23:45

and Rocky Mountain spotted fever.

23:47

Rocky Mountain spotted fever. Is that it?

23:49

That's it? There are you know? You could

23:51

get fungal infections on your palms

23:53

or souls. You could get contact

23:56

dermatitis and things, but in terms of infectious

23:58

diseases, those are the three big ones, and

24:01

it would be all like both hands,

24:03

both feet, both hands, both feet exactly. Yeah.

24:06

But it's not itchy, not itchy usually,

24:09

and not painful. Not painful. Well

24:12

that's that's nice. Yeah, well not

24:14

really. I

24:17

spoke too soon. Spoke too soon. Okay,

24:20

So this rash is now spreading. By

24:22

the end of about a week of having this

24:24

rash, the rash becomes raised, so

24:27

it's now what we call maculo popular.

24:29

So it has red flat spots

24:32

with little dots raised

24:34

bumps in the middle. And

24:36

then in the center of these lesions you can

24:39

sometimes get patikia, which are little

24:41

pinpoint purple spots that usually

24:43

are a sign that you're having some kind of issues

24:46

with your blood clotting. And

24:49

so that is kind of the

24:51

general course of disease.

24:54

It doesn't sound that bad,

24:57

right, Well, that

25:01

was a leading question. I

25:03

mean it doesn't though, Right, It's like headache, fever,

25:05

you're feeling crappy, you get a rash.

25:08

But then, as it turns out, this

25:11

disease is about okay

25:13

without treatment. And before we had treatment

25:16

for it, it was on average

25:18

about twenty five percent fatal. But

25:21

that fatality rate ranged a

25:23

lot from about twenty percent

25:25

to maybe up to eighty five percent

25:28

depending on where geographically

25:30

you got infected. Yep,

25:33

so this is a highly fatal

25:36

illness.

25:37

Right if your average,

25:40

if your lower level is still

25:42

over what did you.

25:43

Say, twenty five percent?

25:45

Yeah, If the average is twenty five percent,

25:49

that's I mean, think about

25:51

the other ones that we've had that have been twenty five

25:53

percent, right, it's not that many exactly.

25:55

That that's a huge case fatality rate.

25:58

Yeah, So the

26:01

question is what are you dying from?

26:03

Right, You've got a rash. How

26:05

is this killing you?

26:07

Well, I feel like the petitia or

26:09

whatever, the blood clotting issue, that

26:11

might be an indication.

26:13

Yeah, so that's one sign. So let's talk

26:15

about kind of the actual pathophysiology

26:17

of how this makes you sick. What's going on when

26:20

you have this rash? Okay, So

26:23

this is a tickborn disease. So, like

26:25

many other tickborn diseases, when

26:28

that tick spits the bacteria underneath

26:31

your skin, those bacteria travel

26:34

through your lymphatic system to end

26:37

up in their host cells.

26:40

And even though this is a bacterium,

26:43

it acts a little bit more like a virus

26:45

in that it has to invade our

26:48

cells. It's an intracellular bacteria

26:51

in order to replicate. It does not have

26:53

the machinery to replicate outside

26:56

of a host cell, much

26:58

like a virus.

27:00

So isn't there some sort of like

27:02

isn't it thought that ricketsia are

27:06

might be closely related to mitochondria?

27:10

Yes? I believe so they think that mitochondria

27:12

came from something, whether a precursor

27:15

to a ricketsia or something similar.

27:17

Because they're like, yep, yes,

27:19

I just think that's so cool. Oh, it's so cool.

27:22

It's so cool. Their genomes are tiny. Okay,

27:25

So in the case of ricketsia

27:27

ricketsia, the cells

27:29

that they invade, the cells

27:31

that they replicate in are

27:34

our vascular endothelium.

27:37

So those are the cells that line

27:40

our blood vessels. Okay, the

27:42

inside lining of our blood vessels.

27:44

Okay, you see where we're going with this, I

27:46

mean, yeah, yeah. Unfortunately, So

27:49

what happens when they enter our cells and

27:51

start to replicate, They they

27:54

do a very good job replicating. They replicate

27:56

by fission. They also have these

27:58

ways of mood from

28:00

cell to cell to sell without

28:03

necessarily damaging our cells

28:05

directly as they move from cell to

28:07

cell, so they can kind of just

28:09

spread along your blood vessels,

28:12

just jumping from cell to sell to sell. And

28:15

because they're in your blood vessels,

28:18

they are literally anywhere

28:20

and everywhere in your body because everywhere

28:23

needs blood, right. And

28:26

then they start to cause direct

28:28

damage to the cells that they infect,

28:31

and they do this in a few different ways. One

28:33

is free radical induced injury, which

28:36

I feel like we're experts on now

28:38

after our radiation episode, Okay,

28:44

and then they also release a number of different

28:46

enzymes that cause damage to these cells.

28:49

So if you are damaging

28:51

the cells that line your blood vessels.

28:54

What do you think is going to happen to the

28:57

fluid that is supposed to be in your blood

28:59

vessel.

29:01

Well, it's gonna create a little leaky

29:03

pipeline, A.

29:03

Little leaky pipeline erin exactly.

29:06

Okay, So this cell damage

29:09

causes exactly that, not frank

29:12

hemorrhage. Okay, they're not like, it's

29:14

not gross enough damage that you're going to be

29:16

bleeding out necessarily.

29:18

Who's frank hemorrhage?

29:25

I'm sorry?

29:31

Uh oh did.

29:33

You like that? I really did so,

29:37

not actual hemorrhage. But

29:39

this damage does cause increase

29:42

in the permeability of that

29:44

membrane essentially, so that means you're

29:46

going to get fluid plasma leaking

29:48

out. This is going to also

29:51

cause you to lose protein because as

29:53

you damage that membrane, proteins

29:56

are usually kept in your blood

29:58

vessel in part by a charge

30:00

differences. So you mess up that membrane,

30:03

you mess up those charges, so

30:05

then protein can leak out more easily,

30:07

which then just draws more liquid

30:09

out with it.

30:10

Okay, so it's like this cascading

30:12

horrible exactly, positive feedback.

30:15

Loop exactly, And let's talk about positive

30:17

feedback loops. Okay, Because,

30:20

like we talked about in the radiation episode,

30:23

when you have this free radical damage

30:26

that happens to these cells, our

30:28

body mounts a response to that,

30:30

right, and that's an inflammatory response. And

30:33

in responding to that, part

30:36

of what our body does to try and

30:38

fight off the inflammation

30:41

and damage that's caused by things like

30:43

free radicals and these enzymes

30:46

is that they will vasodilate our blood

30:48

vessels in order to get more white

30:50

blood cells to the areas that they need

30:52

to be to try and fix this damage. That

30:55

vasodilation means you have more flow,

30:57

which means you have more vascular

31:01

permeability, which means

31:03

you have more leakage. So

31:06

this will eventually lead to edema,

31:09

so swelling outside liquid

31:11

outside of our blood vessels, and

31:13

eventually hypovolemia where you don't

31:15

have enough volume in your blood vessels.

31:19

On top of that, if it happens

31:21

to be important organs like your brain

31:23

or your lungs that get involved in

31:25

this, this is called a vasculitis

31:28

where you have inflammation of

31:30

your blood vessels. If

31:32

it's somewhere like your brain or your lungs,

31:35

you don't have a lot of good lymphatic drainage

31:37

to drain that fluid away, so

31:40

you have pressure that builds up because

31:42

of that in that interstitial space.

31:45

So what's interesting

31:47

about this is that none

31:50

of the papers that I read really

31:53

clearly outlined what the

31:55

exact cause of death tends

31:58

to be in Rock Mountain

32:00

spotted fever. But

32:02

it is essentially organ failure.

32:05

What organ it is that ends up failing

32:07

kind of just depends on what organ happens

32:10

to be the most affected. A

32:12

very large proportion of people have hippatomegaly

32:16

on necropsy or on autopsy after

32:19

they've passed, so your

32:21

liver is very commonly involved,

32:23

at least in fatal cases. Many

32:25

people also have renal failure, so

32:27

kidneys might fail. Your

32:30

lungs can certainly be involved, so you

32:32

could die maybe just from not being able to

32:34

breathe from respiratory failure because

32:36

of all the fluid around your lungs. But

32:39

there's not like a one single

32:42

thing that tends

32:44

to be the ultimate cause of death necessarily.

32:47

But pathophysiologically we know that

32:49

it's this diffuse vascular damage

32:51

that leads to hypovolemia,

32:54

so not enough volume and eventual

32:56

shock. So yeah,

33:00

terrible, really terrible.

33:05

Another thing that I did want to point out that

33:07

I think is really really important about this

33:09

disease is that the mortality rates

33:12

still today, It's non trivial.

33:15

It usually hovers around five percent

33:17

even with treatment. And there is very

33:19

good treatment for this. Doxycycling a

33:22

few days worth clears infection,

33:25

but delays in diagnosis

33:28

are strongly associated with

33:30

poor outcomes. So not

33:32

getting to a doctor fast enough, or

33:35

a doctor failing to make the correct diagnosis

33:38

or get the treatment initiated quickly,

33:41

is very strongly associated with a

33:43

vastly increased risk of death, and

33:46

especially in the US, this disproportionately

33:49

affects black individuals.

33:53

And you know, there

33:55

was a limited amount of discussion

33:57

in the papers that I read as to why it's

34:00

exactly that is, whether it's you

34:02

know, people not seeking

34:04

care and things like that. But

34:07

my guess, and some of the papers

34:09

also said this, is that we

34:11

are really bad at diagnosing

34:14

rashes on black skin. It's

34:17

yeah, it's a huge issue.

34:20

When you google pictures of this, I

34:22

haven't seen a single picture of Rocky Mountain

34:24

spotted fever on a black skinned person.

34:27

Yeah, it's yeah.

34:28

I came across that as well in the

34:30

research and how it's like historically it's been

34:32

it's been like that as well.

34:33

Yeah, and I mean it's not just for this, but this is a

34:36

very fatal disease that's also very treatable

34:38

if you diagnose it properly. And

34:41

so the thing is, we don't have good

34:43

tests, like laboratory tests to diagnose

34:46

this. It's a clinical diagnosis, which

34:48

means you make that diagnosis

34:50

based on history and physical

34:52

findings, including a rash.

34:55

So if we don't know what a rash is supposed to

34:57

look like, because no one's taking

34:59

pictures of it, no one's you know, it's not in

35:01

our textbooks, et cetera, then

35:03

people are dying unnecessarily, which is a

35:05

huge, huge failure of

35:08

the medical system. So

35:11

absolutely, So, yeah,

35:14

that's the biology of Rocky Mountain spotted

35:17

fever. Well,

35:21

it's a terrible disease.

35:22

And that is that's a point that I saw made

35:24

in a lot of different papers in terms of like how

35:28

important this disease is and how

35:30

overlooked it tends to be despite

35:33

the fact that things like landscape

35:35

change and climate change are going to

35:38

greatly shift our exposure,

35:40

our risk, you know.

35:42

Yeah, and I mean it's it's the kind of case where

35:44

it directly results in like people

35:47

dying, you know, but

35:50

it is, it is. It's a difficult thing because

35:52

it is so rare. And I think

35:54

that you know, we'll talk later

35:56

about where you see this geographically,

35:59

but I think a lot of people well maybe don't know or

36:01

don't know to think of it, you

36:04

know, when they're when they're kind of listing their

36:07

their differentials in their head, it could easily

36:09

look like a viral illness. It's like, oh, you've

36:11

got a fever and a headache and you're feeling crappy.

36:14

You know.

36:15

Well, and in the history section,

36:18

I don't talk much about like the name

36:20

itself, but if you look at

36:22

so many different ricketzial diseases they

36:25

tend to have, particularly the arthropod born

36:27

ones, they tend to have location

36:31

specific name. Yeah, And so in

36:33

one place it's Rocky Mountain spotted

36:35

fever, in another place it's something

36:37

else. And so you have like all over the world, you

36:39

know, different species of pathogetic Rikeetsia

36:43

called by different names, and that

36:45

has created a lot of confusion, particularly

36:48

with Rocky Mountain spotted fever. Since we're talking

36:50

about it, like, yes, it occurs

36:53

in the Rockies in the Western States, but

36:56

the eastern seaboard is like bam,

36:59

South America bam, right Central

37:01

America bam.

37:02

Like it's there too.

37:05

And so there was a huge push at one

37:07

point to just call it spotted

37:09

fever or spotted fever group

37:11

of KEETSI but that never really caught on.

37:13

So RMSF is what it

37:15

is. So

37:18

well, tell me more, Aerin about this history.

37:20

How did we get here? Where

37:22

did this thing come from? Okay,

37:25

I cannot wait.

37:26

We will take a quick break first, Aaron,

37:51

you started off biology with a

37:53

quote, and I laughed because

37:57

I'm starting off history with a quote.

38:00

I love it.

38:02

You started off with the quote from the first

38:04

paper you read, and I'm

38:06

starting off with that quote from the book

38:09

from the very beginning. Okay,

38:12

here we go, the

38:15

unwritten history of the investigational

38:17

work in connection with Rocky Mountain Spotted

38:19

Fever, if written would

38:21

read like a romance.

38:26

I mean you see why. I

38:28

was like, what what is this? Okay?

38:35

So yeah, I mean

38:37

why is that? Yeah? Hopefully

38:39

I'll tell you.

38:41

Hopefully I'll do a good enough job that you'll

38:43

understand what that quote means. I'm not sure that I do

38:46

anyway.

38:47

So.

38:48

I mean, and I before researching

38:51

this, I didn't know there's

38:54

quite a bit of like lore

38:57

or fame or infamy

38:59

around owned Rocky Mountain Spotted fever

39:01

research.

39:02

There was a movie.

39:03

Called green Light starring

39:05

Eryl Flynn from nineteen thirty seven, and

39:08

one of the subplots it tells the story

39:10

of the researchers involved on the

39:12

Rocky Mountain Spotted Fever project. What

39:16

Yeah, and the disease itself plays

39:18

a major role in the nineteen

39:20

forty seven movie Driftwood. I

39:22

haven't seen either of these, so I can't vouch

39:25

for their accuracy or how much romance

39:27

they have in them or whatever. But

39:30

I have now read about the history of Rocky Mountain

39:32

Spotted Fever, especially

39:34

the history of its research, and that

39:36

does contain a fair amount of drama

39:39

and romance.

39:41

To start the story, we.

39:44

Don't have to go all that far back,

39:46

actually, so the first hand account

39:48

that I read in the beginning of the episode, as I mentioned,

39:50

is from seventeen fifty nine. But

39:53

like I said, it's not one hundred percent accepted

39:55

to be Rocky Mountain Spotted Fever.

39:58

In any case, there were likely k of

40:01

our msf Rocky Mountain spotted fevers scattered

40:03

throughout the Americas for hundreds

40:05

of years at least, But the real

40:08

story begins only in the late eighteen

40:10

hundreds. We don't

40:12

have written records for anything

40:14

earlier. Yeah, So around

40:16

this time, starting in maybe the

40:18

eighteen sixties or the eighteen seventies,

40:21

a mysterious illness was seeming

40:23

to pop up in the bitter Root Valley

40:25

in Montana. So this

40:28

if you can picture Montana in

40:30

your head, go to the far

40:32

far west, kind of the southwestern

40:36

part of the state. If

40:38

you know where Missoula is, it's like the

40:40

very north end of the valley.

40:42

I don't know where that is, but I can

40:45

picture Montana, So Okay.

40:48

So this valley, the Bitterroot Valley,

40:50

runs about ninety five miles long,

40:52

and it's sandwiched in between the bitter Root

40:54

Mountains and the Sapphire Range, with the

40:57

bitter Root River winding its way through

40:59

the valley. Historically,

41:01

the Salish tribe of the Flathead Nation

41:04

lived in Bitterroot Valley,

41:06

and while the region experienced some settlement

41:09

throughout the eighteen hundreds, Lewis and

41:11

Clark passed through in eighteen oh five, it

41:14

lagged behind other parts of the West,

41:17

but then the discovery of gold in California

41:19

and then the increasing number of Mormon settlements

41:22

in Utah eventually led

41:24

to people striking out to find a

41:26

piece of land of their own, and in the

41:28

second half of the nineteenth century, Montana

41:31

grew enormously in popularity.

41:35

The Bitterroot Valley in the second

41:37

half of the eighteen hundreds in particular,

41:40

was super popular because it had these ample resources

41:42

for lumber and fertile farmland

41:45

for livestock and apple

41:47

orchards were really popular, and

41:50

as you can guess, the increasing number of

41:52

white settlers meant that more

41:54

land had to be found. So what

41:56

was the natural solution to this problem

42:00

genocide? Well,

42:02

at least forceful removal, So the government

42:05

removed the Salish, for whom

42:08

this was their ancestral home, of course,

42:10

and so in the eighteen seventies, with the Salish

42:12

driven out, the land of the bitter Rup was

42:15

ripe for clearcutting and apple farming,

42:18

and it was also apparently ripe for the emergence

42:21

of a seemingly new tickborn disease.

42:24

All this clear cutting to make room for

42:26

orchards and farms led to proliferation

42:29

of scrub habitat, which was

42:32

great for sheep grazing, but also

42:34

great for mice and other

42:36

small mammals, which happened to be excellent

42:39

bloodmeal host for ticks. The

42:41

first case of what we now know is

42:43

Rocky Mountain spotted Fever that we can

42:46

trace back for sure, occurred in eighteen

42:48

seventy three in Montana.

42:50

Consequences man consequences

42:53

for our actions,

42:56

and this case was not a one off.

42:58

So from that first case more followed,

43:00

and not just in Montana, Colorado,

43:03

Oregon, Idaho, Wyoming. A

43:06

lot of other places grew aware

43:08

and wary of the disease rightfully

43:10

so, and I

43:13

have to include another side note here. So for

43:15

a while it was thought that the Salish Indians

43:17

had warned the incoming white settlers

43:19

of Rocky Mountain spotted fever by

43:21

saying certain canyons in the spring in the

43:23

bitter Root were full of evil spirits. But

43:26

this is no longer thought to

43:28

be in relation to the disease.

43:31

Okay, So rather

43:33

what, at least in this book, it was

43:36

thought that the disease probably wasn't super

43:38

prevalent before the white settlers

43:41

clear cut the land and allowed for the

43:43

super proliferation of ticks.

43:46

And so anyway, with this alarming rise of

43:48

an extremely fatal disease, combined

43:51

with like the daughter and son

43:53

in law of the Montana governor dying of the

43:55

disease, the state feared

43:57

that they would lose out on prospective land

43:59

by because of this pesky

44:02

fatal illness, and

44:04

so they told the

44:07

Montana State Board of Health to do

44:09

something, and that's

44:11

exactly what they did, starting

44:14

in nineteen oh two by

44:16

appointing two young pathologists named

44:18

Louis Wilson and William Chowning to

44:21

see what they could figure out about

44:23

the disease. And that same

44:25

spring, a bacteriologist named

44:28

Earl Strain suggested a connection

44:30

between the disease and a tick bite because

44:33

he was there touring to kind of see,

44:35

oh, you know, like what can I figure out about this disease,

44:38

and he visited someone who had

44:40

Rocky Mountain spotted fever and noticed a

44:42

tick embedded in the genitals

44:46

of the sick person.

44:48

Very interesting that he just happened

44:51

to see a tick, because almost

44:53

certainly if that person was suffering

44:55

from Rocky Mountain spotted fever

44:58

and they happened to have a tick, that tick was not,

45:00

in fact the perpetrator of their

45:02

illness.

45:03

I think it speaks to the high levels

45:06

of infestation.

45:08

Around the bitter Root at the time. I no,

45:10

but I mean that's and that would explain why

45:13

you know, you had such a huge increase in cases

45:15

if oh, yeah, you know, you were just getting bit

45:17

left and right and genitals.

45:21

Well, and if you think about like the occupations

45:24

of people who were settling in the bitter

45:26

Root at this time, you're outdoors,

45:28

right, You're outdoors, especially

45:31

during that time of year, and so it's

45:33

almost unavoidable.

45:35

Yeah.

45:35

Yeah.

45:36

So so

45:38

William and Chowning took note of Strain's

45:40

observation when they were planning their research season,

45:43

which they had to do basically right away because

45:46

Rocky Mountain spotted fever season is actually

45:48

pretty short, which is great

45:51

news if you're at risk for the disease,

45:53

but a little bit challenging if you're researching

45:56

it. Joys of fieldwork

45:59

and they covered their bases,

46:01

they performed autopsies, they did epdemiological

46:04

surveys, lab studies, and

46:06

what they found was concerning. Between

46:08

eighteen ninety five and nineteen o two,

46:11

there were eighty eight cases in the Bitterroot

46:13

valley with sixty four deaths.

46:15

Wow, it's a seventy two.

46:17

Point seven mortality rate. And

46:20

they concluded that it was not contagious

46:22

from person to person and not

46:25

a result of melted snow water, which

46:27

was the leading hypothesis

46:30

at the time.

46:30

Okay, well, a good thing, right,

46:34

it would.

46:34

Be hard to avoid melting snowwater. Yeah, melted

46:36

snowwater. And so they suspected instead

46:39

that it was caused by a protozoman that

46:41

they had found in some of the tick samples that

46:43

they had dissected and stuck under

46:45

a microscope. Interesting, and so by

46:47

the end of this first season of their research

46:50

they had a nice little disease ecology cycle

46:52

all laid out. The woodticks

46:54

transmitted the protozoan to humans, and

46:56

ground squirrels aka gophers

46:58

were the disease reservoirs. This

47:02

was an untested hypothesis, but that

47:04

didn't stop reports of it in the news because

47:06

people were hungry for

47:09

information about it. They were like, we

47:11

want to know how to protect ourselves. But

47:14

just knowing or thinking that

47:16

ticks were responsible for the disease

47:19

didn't really do that much because

47:22

ticks were absolutely everywhere

47:25

in the spring in the bitter Root, and so

47:27

the only way to avoid them would be to not

47:30

live or work there, which was not the solution

47:32

that the state was looking for. And

47:35

the only practical step, in their eyes,

47:37

which wasn't really practical at all, was to

47:39

eliminate the ticks themselves or

47:42

the gophers ever.

47:43

Thought to be the hosts. Oh gosh.

47:46

So in the spring of nineteen oh

47:48

four, the residents of the bitter Root took

47:50

this to heart.

47:50

They burned, and they burned.

47:52

Vegetation, and they set out poisoned

47:55

grain to kill the gophers, which

47:57

actually killed a lot of game animal gamers

48:00

and other animals.

48:02

And they also got.

48:03

A bunch of sheep to eat the grass that

48:06

the tall grass that they thought was

48:08

the ticks habitat. Oh dear,

48:11

But it's nearly impossible

48:13

to get rid of ticks. You

48:16

need possums, Sarin, We

48:18

need possums to

48:20

set loose.

48:21

The possums don't do that.

48:23

I feel like maybe we shouldn't gamble

48:27

through the ecological dye in that way.

48:31

So the next best thing, though,

48:33

was just to remove a tick as soon as

48:35

you saw it attached, right, and

48:38

people were encouraged to treat it.

48:40

Like a snake.

48:40

Bite like a venomous snake bite, dab

48:43

some carbolic acid on the side of the bite right

48:45

away. So then people had a lot of acid

48:47

burns, accidental spills.

48:50

Infections, et cetera.

48:52

I mean, basically, the bottom line is that, you

48:54

know, though these efforts had led to some

48:56

fundamental knowledge being gained, the

48:58

application to prevention simply

49:01

wasn't there, right, And so

49:04

more help was called in in the form

49:06

of Charles Wardell Styles.

49:08

Does that name sound familiar to you, Yeah, it sounds

49:11

very familiar. What else did he do? Hookworm?

49:14

Oh, that's right.

49:18

He discovered or

49:21

identified the second species of hookworm

49:24

in the Americas. Yeah,

49:26

and he I think he played a role in

49:29

I don't remember, but I think he played a role in determining

49:31

that it was the cause of the widespread anemia

49:33

in the South.

49:34

Ah. And he's Harry Styles

49:36

is great grandpa exactly

49:39

exactly. I'm

49:41

so hip just

49:44

dropping those names.

49:47

My god.

49:49

Okay, So anyway, so Styles

49:52

set out to basically test the ground

49:54

squirrel tick protozoan

49:57

life cycle that Wilson and Chouning had laid

49:59

out. He was enthusiastic

50:02

about the hypothesis early on, but he

50:04

was a little bit close minded when it came

50:06

to any challenge to the accepted

50:08

dogma of the time, which

50:12

was and this is news to me, but apparently

50:14

for a while it was believed that that

50:17

arthropods could transmit protozoa,

50:21

but were not capable of transmitting

50:24

bacteria other than accidentally,

50:27

like a fly could accidentally, I

50:29

don't know, give you an infection because

50:32

they.

50:32

Stepped in poop or something exactly.

50:35

But mosquitoes and ticks and whatever

50:38

weren't capable of actually completing

50:41

the life cycle I bacteria.

50:43

Am that's so interesting.

50:47

Yeah, So when he searched for

50:49

this, this supposed protozoan in

50:51

the ticks and the blood of the victims, he

50:54

came up empty handed again and again.

50:57

But instead of saying, you know, well

50:59

the may have something to do with it, but

51:02

the protozoan probably doesn't, he

51:04

openly refuted and

51:07

dismissed the existing hypothesis.

51:10

And he was started to say,

51:12

like, oh, you know what, these people or

51:14

these residents are overreacting. Ticks

51:17

aren't involved. It's probably snowmelt

51:19

all along. So

51:23

and it's in a way, this

51:26

contemptuous criticism actually

51:29

was beneficial for the research of Rocky Mountain

51:31

Spotted Fever because it drew

51:34

such attention from other researchers,

51:37

including a pathologist from the University

51:40

of Chicago named Howard

51:42

Taylor Ricketts.

51:45

Ricketts RICKETSS.

51:49

Rickets set up a correspondence

51:51

with Chowning, saying that he believed

51:54

their hypothesis had gotten unfair

51:56

treatment by Styles, and

51:58

Chowning was like, I agree.

52:00

Also, I've been doing some side experiments

52:03

in my spare time, including a little bit

52:05

of medicalized torture.

52:07

Oh great.

52:08

So he had obtained quote

52:10

consent from two people to

52:13

attach ticks to them which

52:15

had been feeding on a man who died of

52:17

Rocky Mountain spotted fever. Oh,

52:20

they both got sick with the disease

52:22

and recovered, And so

52:25

Chowning was like, must be ticks.

52:29

So anyway, Ricketts when

52:31

he told Rickets about this, Rickets just didn't

52:33

acknowledge it. Apparently okay' denounce

52:36

them, but he didn't acknowledge it. And he was like, I'm

52:38

gonna do my own research. And

52:41

so he went to Montana, okay, But

52:43

the state had no money to give him, and

52:45

so he and Wilson and Chowning had to

52:47

find their own way to pay. So they like

52:49

cobbled together a bunch of resources,

52:52

and in nineteen oh six, Ricketts set up

52:54

a laboratory in a tent on

52:57

the grounds of the Northern Pacific Hospital

52:59

in Missoula.

53:01

So he was just like in a tent.

53:03

And that spring and summer proved

53:05

very productive for Rickets and another

53:08

researcher named Walter King, who joined

53:10

in on the research. But it must

53:12

be said that this wasn't a super collaborative

53:16

project each one of these

53:18

men for the most part, maybe you know, Chouning

53:21

and Wilson worked together, but like Rickets

53:23

and King were very much

53:26

like, this is my project, and I want

53:28

to do it my way, and I want research, and

53:30

I want publication priority, and I want

53:32

blah blah blah.

53:34

So anyway, and.

53:37

So first they found Ricketts

53:39

and King found that they could cause the disease in

53:41

a guinea pig by injecting serum

53:43

into the animal, and they could sustain

53:46

the infection by alternating infecting

53:48

a guinea pig and then a monkey, and then a

53:50

guinea pig and then.

53:51

A monkey, which then enabled

53:54

year round research. Okay,

53:56

that makes sense.

53:58

Yeah, Then at the very end of this botted

54:00

fever season, both Ricketts and King demonstrated

54:02

that ticks can cause infection, and

54:05

they did this by attaching a tick to a guinea

54:07

pig and then disease

54:09

resulted. Ah

54:11

and this was a super exciting finding, but

54:15

it came at just the wrong time for

54:17

them because it was the end of

54:19

the season and soon there would be no more ticks

54:21

to be found. Back

54:24

in Chicago and Washington, Rickets

54:26

and King tried to keep these tick experiments

54:29

going by advertising

54:31

in like Montana papers for anyone

54:34

who could find a tick, a live

54:36

tick to send it their way. At

54:39

one point they offered a financial incentive

54:41

of ten dollars in gold for anyone

54:43

who could deliver fifty or more live ticks.

54:45

Oh my gosh, citizen science.

54:50

But they never got any. They had to wait until the spring.

54:53

Okay, and mid April nineteen

54:55

oh seven saw the first victim, a twenty

54:57

six year old lumberman whose family

54:59

refus used to allow Ricketts to draw any

55:01

blood. Ricketts was peeved

55:04

about this, and so he asked the secretary

55:06

of the State Board of Health to do

55:08

something about it, And so he

55:10

drew up an official looking document saying

55:13

that the family must cooperate with the

55:15

investigation and

55:17

then he told Rickets,

55:20

hey, don't let anyone get too close

55:22

to look at this because in truth, I

55:24

have no authority to issue it. So

55:29

you know, oh

55:31

my gosh, and people wonder

55:34

why there's deeply rooted mistrust

55:36

in.

55:37

The medical establishment and

55:39

the government research and authority.

55:42

Yeah, okay, goodness.

55:44

So anyway, in nineteen

55:46

oh seven, Rickets concentrated

55:49

on finding out the pathology of the infection

55:51

in ticks, still without knowing what

55:53

the causative agent was, and he determined

55:56

that a small proportion of female

55:58

tics could transmit the path into their offspring,

56:01

so larval takes.

56:02

Could be infectious. Awesome, which

56:04

is a great finding.

56:05

And then in January of nineteen oh nine

56:07

he seemed to finally hit the jackpot when

56:10

he published a paper in which he described

56:12

the teeny tiny basillis cox

56:14

of bacillis that was the causative

56:16

agent of Rocky Mountain spotted fever. He

56:19

had detected ample amounts

56:22

of the bacteria and eggs of infected females,

56:24

and while he was unable to culture

56:27

the bacteria, he was confident in his

56:29

finding.

56:30

Yeah. Yeah,

56:33

it's I mean, it's pretty cool.

56:35

His achievements, Like people were psyched

56:37

about this because he had done

56:39

I mean, he had done microbiological research,

56:41

he had done ecological research, he

56:43

had done some medical research, and

56:46

so his achievements won him praise and

56:48

opportunities left and right, and even

56:51

the state of Montana recognized his

56:53

work by writing in a bill in

56:55

nineteen oh nine that would fund

56:58

a bunch of his research on unspotted

57:00

fever over the next couple of years. Unfortunately,

57:04

though, the funds were suspended

57:06

when the state realized that they had allocated

57:09

more money than they were going to collect

57:11

in revenue, and

57:13

so Ricketts's work was put on hold.

57:16

Oh Man, and even though his colleagues in

57:18

Montana encouraged him to stick

57:20

around get private funds to bridge

57:22

the gap, Ricketts was like, no,

57:25

I've got so many opportunities here. I'm

57:27

going to Mexico to solve the question

57:30

of another spotted fever like disease,

57:33

typhus.

57:34

Ah.

57:35

So then he went down to Mexico City.

57:38

But it was only after he arrived in

57:40

Mexico City in December of nineteen

57:43

oh nine when he learned that

57:45

the big puzzle pieces of Typhus

57:47

had already been put together. The

57:50

vector animal model.

57:53

You know, it was a lot of the stuff

57:55

that had drawn him to study it

57:58

was already discovered, identified,

58:01

done, but he gamely

58:04

stayed on and tried to figure out the causative

58:06

agent, which he suspected might

58:08

be very similar to Rocky Mountain spotted

58:10

fever.

58:12

So then in early nineteen.

58:13

Eleven, Ricketts got word that

58:16

it finally looked like the Montana funds

58:18

were coming through, and he was super

58:20

happy, but he was not incredibly

58:23

eager to leave, despite

58:25

you know that he was working under very

58:28

dangerous conditions. There was like no protection

58:30

against Typhus. In his letters

58:32

to his friends, he wrote, like, my

58:34

wife is very upset with me.

58:36

She's very scared for me. Like if she

58:39

knew what I was doing, she'd be

58:42

wanting me to come back. But

58:46

he wanted to see the project through to

58:49

the end. And so just as tick season

58:51

was starting in Montana, just as he was like

58:54

trying to get up there, he came down

58:56

with Typhus and died May

58:58

third, nineteen ten, at the age of thirty

59:01

nine.

59:02

No.

59:03

Yeah, his death

59:06

was a huge blow to spotted

59:08

fever research, and it also

59:10

established a very tragic pattern.

59:15

If the first decade of the nineteen

59:18

hundreds was characterized mostly by

59:20

research on the causative agent and medical treatments

59:22

for Rocky Mountain spotted fever. The second

59:24

decade looked towards the tick for

59:26

answers by the late

59:29

nineteenth century, when the focus on Rocky Mountain spotted

59:31

fever was heating up. Entomology

59:33

and medicine were two

59:36

totally different fields, particularly

59:39

in North America. Research

59:42

combining the two was conducted

59:44

only rarely, such as with like

59:46

yellow fever research in Panama, for instance.

59:50

Largely entomologists played the role

59:52

of helping combat agricultural

59:54

pest arthropods or

59:56

doing like academic foundational

1:00:00

biology research, and

1:00:02

medical doctors and researchers dealt

1:00:04

with human diseases, how

1:00:06

it worked in the body, how to control it,

1:00:09

and there often wasn't a lot of opportunity

1:00:12

for overlap. Rocky

1:00:14

Mountain spotted fever, however, required

1:00:16

a full understanding of the vector

1:00:19

tixie cology, like its life

1:00:21

cycle, hosts, behavior, etc.

1:00:23

As well as the characteristics of the disease

1:00:26

bacteria, pathogenesis, etc.

1:00:29

And you might.

1:00:30

Instinctively think that public health

1:00:32

researchers or physicians and

1:00:34

entomologists working together would

1:00:37

be the best way to make progress. But

1:00:39

then maybe you forgot about ego. After

1:00:44

Ricketts met his untimely end,

1:00:47

there was maybe a bit of a vacuum in the Rocky

1:00:49

Mountain Spotted Fever research arena in Montana.

1:00:53

The head the secretary

1:00:56

of the state Public Health Department, whose name

1:00:58

was Tuttle, appointed a thing physician

1:01:00

named mcclintick to continue work

1:01:02

on the project. But then when

1:01:04

he arrived, he found an entomologist

1:01:07

named Robert Cooley had rudely started

1:01:09

on a bunch of control efforts on

1:01:11

his own, and neither was

1:01:13

willing to seed any ground for publication

1:01:16

priority or research area.

1:01:19

And apparently neither was willing to work together.

1:01:21

Oh my gosh, I know, get

1:01:24

over yourselves. Get over it.

1:01:26

So the physician McClintic believed,

1:01:29

because it's a human disease, it's a physician or.

1:01:31

A public health problem.

1:01:32

And then entomologist was like, no, it's

1:01:34

a tick transmitted disease, so that

1:01:36

calls for a tick control expert.

1:01:39

No, it's all of these just

1:01:41

were together. Uh

1:01:43

good, I know.

1:01:44

Oh, it's just like goes on and on, this

1:01:47

sparring over funds. It's actually

1:01:49

spilled over to the federal level and

1:01:52

resulted in Cooley the entomologist, losing

1:01:54

support for his work. Oh so

1:01:57

then mcclintick, who was the physician,

1:01:59

was like, a right, I'm gearing up to do some

1:02:01

tickwork, setting up giant vats to

1:02:03

dip the livestock in

1:02:06

to try to prevent tick infestations on livestock.

1:02:09

And I'm going to initiate a massive project to

1:02:11

identify the reservoir of the bacterium.

1:02:14

But that second project was

1:02:16

mostly just destroying all small

1:02:19

wild mammals like pine squirrels,

1:02:21

yellow billy chipmunks, wood rats, woodchucks,

1:02:23

weasels, badger, and of course the infamous

1:02:25

gopher.

1:02:26

Cool cool, that's

1:02:28

not the way you do it, by the way to control

1:02:31

ticks. That doesn't work.

1:02:34

And so while he was able

1:02:36

to rule out several of the species is playing

1:02:39

a major role in the infection cycle, such as badgers,

1:02:42

he had a hard time finding a single

1:02:44

smoking gun species responsible

1:02:46

for the disease.

1:02:48

And he would never.

1:02:49

Find it because

1:02:51

he died of Rocky Mountain spotted fever.

1:02:53

In nineteen twelve.

1:02:54

Oh my god, just a year after

1:02:56

starting his research in Montana.

1:02:58

Oh that's sad.

1:03:00

It's really sad. Once

1:03:02

again, spotted fever research in Montana

1:03:04

was left without a leader. Maybe

1:03:07

this was an opportunity for a fresh start

1:03:10

to bring together physician and entomologist.

1:03:13

I have a feeling it's not going to happen. Erin, No,

1:03:16

it didn't happen.

1:03:17

The budget and the land would be split. The

1:03:20

north part of the valley went to the US Bureau

1:03:22

of Entomology with COOLi in charge,

1:03:25

and the south part of the valley would be designated

1:03:27

as US Public Health Service land.

1:03:29

Kind of an interesting way to do it, Huh,

1:03:31

isn't it so fascinating?

1:03:34

Who did better? Well?

1:03:37

Great question.

1:03:38

So the entomologists on the

1:03:40

north side of the valley were set on just

1:03:43

livestock dipping and basically

1:03:46

taking a cattle submerging them into

1:03:49

a caroside or a pesticide to kill

1:03:52

the ticks. And so these entomologists

1:03:54

were like, all right, that this is

1:03:57

the key killing small rodents.

1:03:59

That's wayted effort. And the

1:04:01

public health folks on the other hand, were like, no,

1:04:04

we're gonna dip and kill

1:04:06

small mammals and also

1:04:08

not allow cattle to feed in

1:04:11

the western on the western side of the river, which

1:04:14

was the only side that was infected.

1:04:16

By the way. Oh yeah.

1:04:19

And so whether the dipping was

1:04:22

actually effective was called into question

1:04:24

as well. So from nineteen thirteen to nineteen

1:04:26

eighteen, the number of ticks supposedly

1:04:29

declined eighty to ninety percent, while

1:04:31

the number of cases had been reduced from eleven

1:04:34

to three. But these numbers are far

1:04:36

from conclusive, like eleven to three

1:04:39

is super.

1:04:40

Could just be seasonal variation or

1:04:42

whatever.

1:04:43

Exactly exactly, And

1:04:46

eradication, which was the promised

1:04:48

end of these projects, was not

1:04:50

on the horizon. The

1:04:53

tick must be destroyed. Killing

1:04:55

small animals wasn't doing it. Dipping

1:04:57

cattle wasn't doing it. Maybe a vaccine

1:05:00

could work.

1:05:01

By the way, that's our title.

1:05:04

The

1:05:12

before Ricketts died, he published

1:05:14

his preliminary findings of this bacterium,

1:05:17

but the debate continued with

1:05:20

still the protozoan leading the pack.

1:05:22

Gosh, I know.

1:05:24

The pathologistes Bert

1:05:26

Wallbach.

1:05:29

Like Wallbachia. Oh that's

1:05:31

exciting. Yeah.

1:05:33

He decided to give it a shot, and

1:05:35

he also observed teeny tiny

1:05:37

bacteria like things in the ticks, their

1:05:39

eggs, and the blood of humans and animals

1:05:42

that had spotted fever. Okay, but

1:05:44

he wasn't sure that they were actually bacteria

1:05:47

because he was like, it doesn't make sense,

1:05:49

they live entirely within the

1:05:51

cells of the animals. So

1:05:54

this has got to be some new kind of micro

1:05:56

organism somewhere in between protozoa

1:05:59

and bacteria.

1:06:00

I mean yeah, I mean wrong,

1:06:03

He's not wrong.

1:06:04

Like, and

1:06:08

even though he was pretty certain he had discovered

1:06:10

the causative agent, which he called dermo

1:06:12

CenTra zenus rakhetzi, others

1:06:14

weren't convinced, chiefly because he was

1:06:16

unable to culture the organism in.

1:06:19

Media in a lab. Of course he was,

1:06:22

he.

1:06:22

Was, like, he was like, listen, like,

1:06:25

I understand that these postula its are important, but

1:06:27

like we have to evolve, like we're

1:06:29

learning new things.

1:06:30

Maybe we should look at different criteria. Yeah,

1:06:34

he was right, He's right.

1:06:39

But then the discovery of the causative agent

1:06:41

of Typhus forced researchers

1:06:44

to accept that these intracellular

1:06:47

microbes might actually be real and

1:06:50

maybe a new type of microbial life,

1:06:52

or at least a new version of

1:06:55

what we've already seen. And eventually

1:06:57

the name that Wollback had given for the spotted fever

1:06:59

back Bacterium was changed to Rakkeetzier

1:07:01

rakeetzii, giving rise to a whole

1:07:04

new genus of pathogenic intracellular

1:07:06

bacteria cool. So

1:07:09

by the nineteen twenties, the causative

1:07:12

agent of Rocky Mountain spotted fever had been discovered

1:07:15

and the life cycle had been outlined.

1:07:17

But this knowledge didn't translate

1:07:20

into live saved yet again. Rather,

1:07:23

the incidents of the disease, as well as its

1:07:25

mortality, seemed to be on the rise.

1:07:28

For instance, in nineteen twenty one, all

1:07:30

eleven cases of Rocky Mountain spotted

1:07:32

fever died. Land

1:07:35

prices reflected this. They were

1:07:37

dropping from one hundred and twenty five dollars

1:07:39

per acre to fifteen dollars

1:07:41

per acre in some places. Oh also,

1:07:44

fifteen dollars per acre.

1:07:46

Can even imagine should

1:07:48

have bought erin actually missed out?

1:07:51

We did, and

1:07:54

tourism obviously plummeted.

1:07:56

No one wanted to go to a place where you could catch

1:07:59

spotted.

1:07:59

Fever and one hundred percent of you would die.

1:08:02

Yeah, yeah, And matters

1:08:04

were only made worse when the

1:08:06

first state bacteriologist, Arthur

1:08:08

McCrae, died of Rocky Mountain

1:08:10

spotted fever in nineteen nineteen.

1:08:12

Oh my gosh, eron, how many people are going to

1:08:14

die from this? There's more?

1:08:17

Okay, So

1:08:20

panic was at an all

1:08:22

time high, so the

1:08:24

state finally acquiesced to providing

1:08:26

funds to create a laboratory whose

1:08:28

main focus was to stop the problem

1:08:31

of spotted fever.

1:08:33

The quote Schoolhouse Lab was established

1:08:36

in an abandoned schoolhouse a couple

1:08:38

of miles from Hamilton, Montana, in

1:08:40

the Bitterroot Valley. There,

1:08:43

lab and ecological facilities were

1:08:45

built or cobbled together

1:08:47

where researchers could actually do the work

1:08:49

that they had been doing in their spare time in

1:08:52

makeshift tents and distant university

1:08:54

labs for years. And to

1:08:56

head this new research venture, two

1:08:59

people were appointed, physician Roscoe

1:09:01

Spencer and entomologist Ralph

1:09:03

Parker.

1:09:04

Parker, I all right, another

1:09:07

physician and another entomologist.

1:09:10

Are they going to work together this time? Well,

1:09:13

this is where the romance comes in.

1:09:15

Just going at

1:09:17

first, the old time rivalry

1:09:19

between these two professions seemed like

1:09:21

it was going to rear its ugly head yet again,

1:09:24

and they were like, oh, you know, before

1:09:26

they before they arrived in Montana,

1:09:28

I was like, oh, what about publication priority?

1:09:31

What about this? What about that?

1:09:32

But then they met in person and they were like,

1:09:35

let's work together. All of our research will

1:09:37

be published jointly.

1:09:38

So isn't that nice?

1:09:41

Is how you do it? That's how you do it.

1:09:44

So Parker, the entomologist,

1:09:46

he had set his sights on big picture

1:09:49

ecological studies like huge,

1:09:51

what do we how do we find out the links between

1:09:54

ticks and these animals and spotted fever

1:09:56

and the behavior and seasonality

1:09:58

and all of these like just the

1:10:00

most fun questions, right, And

1:10:03

Spencer's like.

1:10:04

I'm gonna do a vaccine.

1:10:06

And so there had been.

1:10:08

Some research by Hideo Nogucci

1:10:10

at the Rockefeller Institute that was

1:10:13

promising in terms of spotted

1:10:15

fever vaccines, and in nineteen

1:10:17

twenty three, Nogucci had declared

1:10:20

that he had developed an effective vaccine. It

1:10:22

just needed to be tested in humans. So

1:10:25

who better to volunteer than some of

1:10:27

the laboratory staff at the Schoolhouse

1:10:29

Lab in Hamilton. For sure, incidents

1:10:32

of the disease was disturbingly high.

1:10:35

The vaccine was not.

1:10:37

Without side effects, but

1:10:39

it seemed to be effective and at least reducing

1:10:42

the severity of illness if exposed

1:10:44

to the disease. All right, But

1:10:47

because the efficacy of Nogucci's vaccine

1:10:49

remained doubtful, Spencer, the

1:10:51

physician involved in the project continued

1:10:54

his own work on a vaccine, work

1:10:57

which ended up being delayed because

1:11:00

tularimia, another disease,

1:11:02

started popping up in the Bitter Root

1:11:04

Valley.

1:11:05

Oh my gosh, this does not make me want

1:11:07

to visit this part of Montana.

1:11:09

Oh my gosh. What I mean?

1:11:12

First of all, Okay, that

1:11:15

was not the

1:11:18

image I was trying to portray with this

1:11:20

history, and I feel now very bad

1:11:22

about it because it is absolutely

1:11:24

beautiful. And yes

1:11:26

there are ticks, but we know a lot more about

1:11:28

Rocky Mountain spotted fever. We know a lot more about

1:11:31

how to protect ourselves and if

1:11:34

there's ever an area where

1:11:36

the physicians are probably keyed

1:11:38

into, Yeah, that makes sense.

1:11:41

Signs you symptoms, you'd get doxycycling.

1:11:43

If you walked in and said I had a fever.

1:11:46

You're like, I went hiking in the bitter Root. Here's

1:11:48

some doxy ceco.

1:11:50

I'm just kidding. You don't give it prophylactically,

1:11:52

but anyhow.

1:11:56

So okay, tularimia

1:11:58

popped up. Both as Ann

1:12:00

Parker, the heads of the project, became ill,

1:12:03

and they wouldn't be the last to fall

1:12:05

during this work.

1:12:07

No, Aaron, I don't know if my heart

1:12:09

can take this. I'm so sorry.

1:12:11

This is the whole romance. This is

1:12:14

not that.

1:12:14

I think it was like romance, meant in

1:12:17

the way that was like.

1:12:20

Tragedy. Oh yeah, those are

1:12:22

two different categories of

1:12:24

film. I

1:12:26

don't know, are they? Like a tragic movie

1:12:28

could be romantic at the same time and vice versa

1:12:33

Romeo and Juliet. Yeah, I don't like

1:12:35

that one.

1:12:36

Well, anyways, regardless,

1:12:39

let's learn more about the fallen researchers.

1:12:42

Okay, student research assistant

1:12:45

William Geddinger died in nineteen

1:12:47

twenty two of spotted fever. Field

1:12:49

assistant George Henry Cowan, who had

1:12:52

worked for over a decade on the

1:12:54

disease, died in nineteen twenty four,

1:12:56

and another student researcher named Albert

1:12:58

Curley died in nineteen twenty eight

1:13:01

of spotted fever. In

1:13:03

nineteen twenty five alone, six

1:13:06

people working at the Schoolhouse Labs

1:13:08

became infected with either

1:13:11

spotted fever or tularimia.

1:13:13

Oh my goodness.

1:13:14

The Schoolhouse Lab was

1:13:18

notoriously and

1:13:20

deservedly so, an incredibly dangerous

1:13:22

place to work because there was no

1:13:25

biocontainment facilities and

1:13:27

spotted fever ridden ticks were crawling

1:13:30

all over the place. Oh no, Like they would

1:13:32

have rabbits that they would infect and then the ticks

1:13:34

would just be like your tick falls off and then

1:13:36

it could go and.

1:13:37

Oh get up on a lab worker.

1:13:39

Dogs wandered in and out, bringing ticks

1:13:41

with them. I mean they didn't

1:13:44

have the best facilities, right. Part

1:13:46

of it was funds, Like if

1:13:48

there's a lesson here, and it's about funding

1:13:50

disease research as

1:13:52

usual. There's

1:13:55

a famous book called Microbe Hunters by

1:13:57

Paul Dacreefe that tells

1:13:59

the romantic and swashbuckling tales

1:14:02

of like early microbiologists and well

1:14:05

micropunters, and it

1:14:08

includes the story of the Rocky Mountain spotted fever

1:14:10

researchers, which enraged the

1:14:12

residence of the Bitter Root because it portrayed

1:14:14

them all as like cowering in their cabins

1:14:17

hiding from this dreaded disease. But

1:14:20

I mean people were rightfully scared of spotted

1:14:22

fever, and so when Spencer rolled out testing

1:14:24

of his vaccine in nineteen twenty five,

1:14:27

people like both workers

1:14:30

at the lab as well as residents

1:14:32

eagerly volunteered and

1:14:34

it seemed effective in at least reducing

1:14:37

the duration and severity of the illness.

1:14:39

Okay, so overall, retrospective

1:14:42

studies showed that vaccinated people had a

1:14:44

seventy five percent lower fatality

1:14:47

rate than those who were unvaccinated.

1:14:49

What that's amazing.

1:14:51

Yeah, yeah, so you

1:14:54

know, but the

1:14:56

hazardous working conditions remained

1:14:58

a concern, and so the state finally

1:15:01

put together funds to build new facilities.

1:15:04

But where should they go? Should they move to Missoula,

1:15:06

where the University of Montana was located,

1:15:08

But maybe that was too far from the field, and

1:15:11

so we should keep it close to

1:15:13

Hamilton, And so it was

1:15:15

decided that it was that it would be built on

1:15:17

the east side of the river in Hamilton,

1:15:21

which had always been spotted fever

1:15:23

free.

1:15:23

Oh no.

1:15:26

This caused quite a bit of

1:15:28

a stir as people became concerned

1:15:30

that the disease would become established

1:15:32

on the east side, or that infected

1:15:34

ticks would escape, or children playing

1:15:37

in the yards of the lab would get infected. But

1:15:40

tons of special precautions were put in place,

1:15:43

including like amoat and heavy

1:15:45

duty sterilization procedures WHOA

1:15:47

and work began. Ultimately,

1:15:51

the residents of Hamilton warmed to the lab

1:15:53

and they would occasionally like lead out of

1:15:56

town visitors through the building. And then that

1:15:58

became problematic because the recent were

1:16:00

like, you're putting yourselves at risk. We

1:16:03

need to shut this down, like you

1:16:05

need to sign in, you need to have somebody

1:16:08

supervising this. So but

1:16:10

anyway, the availability of a vaccine

1:16:12

also alaid some of these fears. But

1:16:15

the vaccine was not a permanent solution because

1:16:17

in order to make it, researchers

1:16:19

had to collect or rear thousands

1:16:22

of ticks, get them infected,

1:16:24

and then grind them up and then

1:16:26

turn that into a vaccine.

1:16:28

Oh that's what they were using. Okay,

1:16:30

mm hmm.

1:16:31

And there wasn't much work that had been

1:16:33

done on streamlining the production process,

1:16:36

and nor would there probably be,

1:16:39

since the market for the vaccine was relatively

1:16:42

like low, only in the Western States.

1:16:44

Yeah, or was it so?

1:16:49

Throughout the nineteen thirties, a mysterious

1:16:51

typhus like illness was noted along

1:16:54

the eastern seaboard of the US as well

1:16:56

as in Brazil, and it seemed to be associated

1:16:58

with.

1:16:59

A tick bite.

1:17:00

And while initially it was thought to be a disease distinct

1:17:02

from spotted fever, like doctors

1:17:04

would say, oh, I would say this is spotted fever

1:17:06

if I were in Montana. But

1:17:09

ultimately microbiological research showed

1:17:11

it to be one and the same. And this

1:17:13

development was pretty crucial since it came

1:17:16

around the same time as the Great

1:17:18

Depression was sinking its teeth into

1:17:20

everything, including

1:17:23

scientific research funding. So

1:17:26

funding for the Rocky Mountain

1:17:28

Laboratory was threatened. And

1:17:31

in response to this, one

1:17:33

person, one researcher replied quote,

1:17:36

and I'm including this quote because I think it's relevant

1:17:40

to.

1:17:41

Today and always.

1:17:44

If the government should discontinue this activity

1:17:46

in the light of our present knowledge, the

1:17:48

person's responsible for such action would,

1:17:51

in my opinion, be morally

1:17:53

responsible for the deaths which will

1:17:55

occur as a result of the lack

1:17:57

of material. I may

1:17:59

add that only a few days ago

1:18:02

a request was received from the Army

1:18:04

for a large quantity of this material

1:18:06

to be used for the protection of its forces

1:18:09

in the field.

1:18:11

So sounds strangely

1:18:14

familiar in our affurent climate.

1:18:19

And that's all I'm going to say about that.

1:18:22

It's like the government doesn't want to fund this anymore,

1:18:25

but yet they want it so

1:18:28

anyway.

1:18:30

Fortunately, you know.

1:18:31

Maybe this has cause for optimism. The

1:18:34

funds were preserved the lab

1:18:36

stayed and placed, and actually

1:18:38

some Civilian Conservation Corps

1:18:40

CCC camps, which was like part of the whole,

1:18:43

you know, Roosevelt's New Deal,

1:18:45

were established in the bitter Root

1:18:47

to help collect ticks and

1:18:49

to do this research for vaccine

1:18:51

productions. They had tons of people coming

1:18:54

in to work there, which was

1:18:56

actually also a problem because there wasn't

1:18:59

enough vaccine to vaccinate.

1:19:00

The newly arrived workers. But anyway,

1:19:04

so until the mid nineteen.

1:19:05

Thirties, research at the Spotted Fever Lab

1:19:07

in Hamilton had focused on just

1:19:10

that, hence its name, which

1:19:12

is the Spotted Fever Lab. Maybe

1:19:14

some dips into tularimia, but developments

1:19:17

in the mid nineteen thirties would greatly

1:19:19

expand its role and give it the name Rocky

1:19:21

Mountain Laboratory.

1:19:23

But that, like Rocky Mountain Labs, is

1:19:25

still a thing today.

1:19:27

Oh yeah, these

1:19:29

are its roots.

1:19:30

Yeah that. I never knew that. And when

1:19:32

you said Rocky Mountain Labs earlier, I was

1:19:34

like, I never

1:19:36

would have. I don't know how I never would

1:19:38

have made a connection between Rocky

1:19:41

Mountain, Spotted Fever and Rocky Mountain Labs. I

1:19:43

never I never made that connection before.

1:19:45

Oh my gosh, and it's it's so wild

1:19:47

because like that's always been like

1:19:50

well throughout my PhD. I was like, Oh, that's

1:19:52

that's my dream place to work. I want to work on

1:19:54

racketzias in Rocky On in

1:19:57

RML.

1:19:57

Yeah, in beautiful ham.

1:20:00

And But like I didn't know

1:20:02

any part of this history, and I also didn't

1:20:05

know the incredible significance

1:20:07

that this lab has had, like

1:20:09

not only on Rocky Mountain spotted fever research,

1:20:12

but as we're about to find out even

1:20:14

more research.

1:20:15

Ooh

1:20:18

okay.

1:20:19

So in nineteen thirty

1:20:21

six, a researcher at Rocky

1:20:24

Mountain Laboratory named Harold Cox had

1:20:26

been experimenting with different ways

1:20:28

to grow ricketzier outside of ticks,

1:20:31

because he was like, I want to put together

1:20:33

a better method of vaccine production. One

1:20:36

day he ran out of the tissue that

1:20:38

he had been using mid experiment, and

1:20:42

rather than scrapping the whole thing, he

1:20:44

reached for some yolksac that

1:20:47

he had put in the fridge. You

1:20:49

have that just like I guess

1:20:51

well, they were doing like egg yambrane

1:20:54

whatever, And the next day

1:20:56

he found it teeming with ricketzia.

1:20:59

He was like, oh my gosh, what

1:21:02

he wrote to everyone.

1:21:03

People were super skeptical and then they saw it in

1:21:05

person and they were like you kidding me.

1:21:07

Good job.

1:21:10

And this accidental

1:21:12

discovery had huge implications

1:21:15

but not just for spotted fever research,

1:21:18

but other riquettsial diseases. And

1:21:20

I know that, like we haven't done a Typhus

1:21:22

episode, but like Typhus

1:21:25

is really bad. Yeah, I mean

1:21:27

you talk about one of the big killers of

1:21:29

especially like you know, wartime

1:21:32

and any sort of like civil unrest

1:21:34

areas, Like Typhus was

1:21:37

massive. Yeah, so it's

1:21:39

still it's still massive.

1:21:42

Yeah.

1:21:42

Yeah, So Typhus was

1:21:44

was a huge one, and so so

1:21:46

spotted fever. Yeah, across the US

1:21:49

and inter Central and South America, incidents

1:21:51

of it ran pretty low. Of course, it was very

1:21:53

deadly and so that was a huge cause for concern.

1:21:56

But of even more interest was this

1:21:59

the big killer typhus, Especially

1:22:02

as World War two began and

1:22:04

as US soldiers began to be stationed

1:22:07

in regions where it was endemic.

1:22:11

Cox's yolksac method

1:22:13

provided a cost efficient way to

1:22:15

produce the volume of vaccines that

1:22:17

had long been sought after huh.

1:22:20

This discovery turned Rocky

1:22:22

Mountain Laboratory into a national

1:22:25

vaccine factory for typhus and

1:22:27

yellow fever and others during

1:22:29

World War two. Like it turned into

1:22:31

just pumping out vaccines.

1:22:33

Wow, I did not know that.

1:22:35

And it played such a hugely important

1:22:38

role during World War two that there were

1:22:40

armed guards like from

1:22:43

you know, armed forces around

1:22:46

there around the clock twenty four to seven

1:22:48

to make sure that like nothing happened to the lab

1:22:51

in old Hamilton, Montana, like tiny

1:22:54

town.

1:22:54

So anyway, super cool.

1:22:57

And then while at Rocky Mountain Laboratory,

1:23:00

Cox also developed the complement

1:23:02

fixation test, which allowed

1:23:04

for diagnosis of ricketzial diseases.

1:23:08

Wow, that's a big deal.

1:23:10

That's a very big deal. So VACU

1:23:12

Mountain Lab, Rocky Mountain Lab.

1:23:17

The discovery of antibiotics that were

1:23:19

effective against ricketzial diseases

1:23:21

in the nineteen forties and the nineteen fifties,

1:23:24

they took some of the urgency out of the

1:23:26

preventative or treatment research programs

1:23:29

for spotted fever. Researchers

1:23:31

could now focus on understanding the physiology

1:23:34

of ricketzier and the microbiology

1:23:37

of these bizarre tiny

1:23:39

bacteria, and the

1:23:42

miracle of antibiotics, as we had discussed

1:23:45

a few episodes ago, led to

1:23:47

this unfortunate decline in some

1:23:49

of the more fundamental medical entomology

1:23:51

research that had been the hallmark of the

1:23:53

Rocky Mountain Laboratory in its early decades.

1:23:57

With the combination of a vaccine

1:23:59

and antibiotics, fear of spotted

1:24:01

fever declined throughout the fifties

1:24:03

and the sixties, despite the fact

1:24:06

that it continued to pop up in new locations

1:24:08

and with increasing incidents like

1:24:10

it. If you look at a chart

1:24:14

of the cases over time, it's like

1:24:16

increasing, increasing in the late eighteen hundreds,

1:24:19

early nineteen hundreds, and then plummets, and

1:24:21

then throughout the sixties and seventies it's like

1:24:23

on the rise.

1:24:24

Oh just wait, Aaron, just okay, wait.

1:24:27

I'm very interested,

1:24:29

Okay. And

1:24:32

then budget cuts in the nineteen

1:24:35

seventies eliminated the medical

1:24:37

entomology research program at Rocky

1:24:39

Mountain lab And I don't

1:24:41

know if it's if it's back up or not. I should have checked

1:24:43

that, But and the tick collection was

1:24:45

shipped to the Smithsonian.

1:24:47

Huh.

1:24:48

Work on Ricketsie continued, and

1:24:51

Rocky Mountain.

1:24:51

Laboratories is still a

1:24:54

hugely.

1:24:55

Important side of research in general, as we mentioned,

1:24:58

and a few more pieces of the spotted

1:25:00

fever puzzle fell into place

1:25:03

during this time. For instance,

1:25:05

the recent resurgence in cases in the nineteen

1:25:08

seventies was traced to the

1:25:10

encroachment of humans into previously

1:25:12

wooded areas allah lime

1:25:14

disease surprise, surprise, and

1:25:18

most interestingly, the long

1:25:20

standing mystery of why the

1:25:22

east side of the Bitterroot River remained

1:25:24

protected from the west side

1:25:28

was solved okay by

1:25:30

Willie Burgdorfer Burgdorfer.

1:25:35

Of our lime disease episode.

1:25:39

Yet Okay, we

1:25:41

don't know.

1:25:42

So I'm so excited that I

1:25:44

get to tell you this.

1:25:45

Oh I'm so excited too, because I really was expecting

1:25:47

this story to go And then they built a lab

1:25:49

and then released infected ticks and

1:25:51

now they're everywhere, Like that's one hundred

1:25:54

percent what I expected.

1:25:55

So that's not what happened. And

1:25:58

here's why. So he

1:26:00

discovered that on

1:26:03

the east side of the river. He

1:26:06

was doing a bunch of, you know, microbiology

1:26:08

essays of these ticks, and he discovered

1:26:11

that they were infected with Ricketsia,

1:26:14

but it was a non pathogenic one,

1:26:17

and the Ricketsia in those ticks

1:26:19

prevented Racketzia ricketsii,

1:26:22

the pathogenic one from colonizing

1:26:24

the ticks interference

1:26:26

phenomenon.

1:26:27

Okay, oh

1:26:30

my god, I'm getting like chills.

1:26:33

I know, I know.

1:26:35

So researchers

1:26:38

had long made the observation that animals freely

1:26:40

passed from the east side to the west side of the river. Animals

1:26:43

were found on both sides. Like it didn't

1:26:45

make sense, right, So if

1:26:47

a tick that is infected with this non pathogenic

1:26:50

Ricketsia bites an animal

1:26:52

that is infected with spotted

1:26:55

fever Racketzia Ricketsia I, that

1:26:58

spotted fever can't establish

1:27:00

in that tick, right because the other bacteria

1:27:02

is just already there and

1:27:04

so and this bacteria also has

1:27:07

better transoviial transmission, so

1:27:10

it will not hurt the tick

1:27:13

as it's passed from female

1:27:15

tick to eggs. This

1:27:18

is so interesting, Aaron tick biology

1:27:20

is so amazing.

1:27:22

It really is very so amazing.

1:27:24

That is so bizarre.

1:27:26

So, this this interference phenomenon

1:27:28

people have like it's been discussed,

1:27:31

this type of thing, We've talked about it with Wolbacchia,

1:27:33

and like, yeah, maybe we haven't, but like we've

1:27:35

referenced it at least or alluded to it

1:27:38

in terms of like finding the certain

1:27:41

microbes that can prevent pathogenic

1:27:44

ones from establishing in a vector.

1:27:45

We talked about it with then gay fever.

1:27:48

Oh yeah, yeah, so anyway,

1:27:51

Burgdorf, Yeah, So,

1:27:53

even though Rocky Mountain spotted fever

1:27:55

has been heavily studied for over

1:27:58

one hundred years, there's

1:28:00

still a lot that we don't know about it, m

1:28:02

M, particularly when it comes

1:28:04

to the disease, reservoirs, strain

1:28:07

differences, geographic differences, climate

1:28:09

change, like the list goes on and

1:28:12

on and on, seasonality. Fortunately

1:28:15

for researchers now it's a lot

1:28:17

safer than it used to be to study.

1:28:19

And I repeat again, I

1:28:22

hope, hope, hope.

1:28:23

I haven't discouraged anyone from visiting

1:28:25

the Bitterroot Valley because you definitely

1:28:28

should do so. It's gorgeous, it's

1:28:30

amazing and anyway,

1:28:33

and you could go see Rocky Mountain Labs

1:28:36

and you could go see

1:28:38

the infamous, the famous,

1:28:40

the amazing Rocky Mountain Labs. Okay,

1:28:45

well erin, tell

1:28:47

me what's going on with Rocky Mountain

1:28:49

spotted fever today.

1:28:50

Oh oh, I'm really thrilled

1:28:52

too. After that history, we'll take

1:28:55

one quick break first. I'm

1:29:29

going to start off not where I expected

1:29:32

to start off. Because I

1:29:35

want to ask you questions.

1:29:37

Erin, Okay, Okay, I

1:29:41

want to start off with vaccine.

1:29:44

We don't have one, Erin, No,

1:29:47

there is none.

1:29:49

The one that they had developed, the

1:29:51

Parker Spencer vaccine that

1:29:54

was used, I don't know how,

1:29:56

like it's not been used for several decades

1:29:58

now, Yeah, and I I think ultimately

1:30:01

it caused some

1:30:03

side effects and possibly infection in

1:30:06

some.

1:30:06

People, if that makes sense. If they were just grinding

1:30:08

up ticks, then that would that would be Yeah.

1:30:11

It seems like Riquetsier in

1:30:13

general are a tricky bunch

1:30:15

to make vaccines for.

1:30:17

Yeah, I don't I don't know, I

1:30:20

don't know, but we don't

1:30:22

have a vaccine honestly,

1:30:25

from what it sounds like, and I'm

1:30:27

I'm sure that this is the case, it's largely

1:30:29

just because of a lack of funding and a lack

1:30:32

of interest, not just from

1:30:34

like a research standpoint, but from a pharmaceutical

1:30:37

standpoint. There

1:30:39

are not enough cases essentially

1:30:41

per year to produce

1:30:44

a vaccine. It's not like financially

1:30:46

viable, for better or for worse. It

1:30:49

is true that patients who survive

1:30:51

infection do mount a very

1:30:53

good and long lasting immune response

1:30:56

and We've also identified a number

1:30:59

of the surface protein an egen,

1:31:01

so it's certainly theoretically possible

1:31:03

to develop a vaccine. But

1:31:06

when you you know, I usually

1:31:08

use Google scholar that's

1:31:10

my preferred search website

1:31:15

for finding my papers. And

1:31:17

when you search Rocking Mountain spot of

1:31:19

Fever vaccine, you the first

1:31:22

entire page of results. There is

1:31:24

not a single paper from past nineteen

1:31:26

ninety on that page.

1:31:30

So yep, and some of

1:31:32

them are from nineteen twenty five. They're

1:31:35

probably some of the ones referenced

1:31:37

in your book. Oh my gosh's Parker

1:31:39

sponsor, right, But that

1:31:41

doesn't mean that no one's doing research on it. I

1:31:43

did find a recent paper that

1:31:46

was looking at and did

1:31:48

develop an effective wholesale vaccine

1:31:50

that they tested in dogs. I will

1:31:52

link to it, but like, I wouldn't

1:31:54

read that paper again. It was very depressing.

1:31:57

They killed a lot of dogs. Oh

1:32:00

my god. Yeah, but

1:32:02

they made a vaccine. So

1:32:05

anyways, that's the current

1:32:08

research. Let's talk about the epidemiology.

1:32:10

Okay, yes, all

1:32:13

right, So in the United States,

1:32:16

Rocky Mountain spotted fever has

1:32:18

been a nationally notifiable

1:32:20

disease since the nineteen twenties.

1:32:23

Since twenty ten, they've been calling

1:32:26

it a different name and therefore reporting

1:32:28

it a little bit differently. It's now reported

1:32:31

as spotted fever ricketziosis.

1:32:34

And the reason is we don't

1:32:36

have a good way to differentiate the

1:32:38

clinical syndrome that is caused

1:32:40

by Ricketzia RICKETSII from

1:32:43

the clinical syndromes that are caused by a

1:32:46

number of other Ricketzial pathogens,

1:32:49

including Ricketzia, Parker eye,

1:32:51

which we briefly said

1:32:54

those words earlier, ricketzial

1:32:57

pox, and a few others.

1:33:01

So kind of that's the background

1:33:03

I think to keep in mind as I'm going to talk

1:33:05

about these numbers, because this gets really

1:33:08

interesting, Okay, Okay, so

1:33:11

let's talk about you said that cases

1:33:14

were increasing, you know, through

1:33:16

the late nineteen nineties or

1:33:18

through the late nineteen hundreds right

1:33:21

after that drop off. Well,

1:33:24

if you look at the graphs of cases

1:33:27

since the year two thousand, it's

1:33:30

terrifying. It is.

1:33:33

It's an exponential growth curve, which

1:33:35

everyone is now very familiar with. We've

1:33:37

all seen a lot of those

1:33:39

these days. Okay, The

1:33:43

number of cases has increased steadily

1:33:46

just about every year. Twenty

1:33:49

eighteen was a little better than twenty seventeen,

1:33:51

but in twenty seventeen, there were over six thousand

1:33:53

cases reported, and that's up

1:33:55

from five under five hundred in the

1:33:57

year two thousand.

1:33:59

What okay, that's like

1:34:02

And I'm so embarrassed because this is literally

1:34:05

what I did my PhD on.

1:34:06

Yeah, you did it in Panama. Okay,

1:34:09

it's fine, Okay, you didn't need to

1:34:11

know these numbers. So, but here's the question.

1:34:14

We're seeing these huge increases in cases.

1:34:17

How many of these are the

1:34:20

very deadly Rocky Mountain spotted fever versus

1:34:22

other ricketzia and

1:34:25

it's really hard to say, And also how

1:34:27

much of it is Are we getting better at recognizing

1:34:29

it, are we getting better at reporting it?

1:34:33

Or are there an increase in

1:34:35

infections? I

1:34:38

think this is me thinking,

1:34:40

but also like based on what I

1:34:42

read, uh, it's likely

1:34:44

a combination of both as usual. But

1:34:47

the increase is so large over

1:34:49

such a short period of time, Like we're talking

1:34:51

twenty years, right from two thousand you

1:34:53

have under five hundred cases to over six

1:34:56

thousand in seventeen years.

1:34:58

That's massive. And this is a disease

1:35:01

that's been notifiable since

1:35:03

the nineteen twenties, and

1:35:06

our diagnostic tools are

1:35:08

not much better today than they

1:35:10

were twenty years ago.

1:35:13

Okay, the

1:35:15

case fatality rate has drastically

1:35:20

dramatically decreased

1:35:22

since the nineteen forties, since the introduction

1:35:25

of tetracyclines for treatment.

1:35:28

So in clinical reviews like

1:35:30

worldwide, even after tetracyclines

1:35:33

were introduced for treatment, case

1:35:35

fatality rates still usually

1:35:38

are about five to ten percent, usually

1:35:40

around five percent. But

1:35:43

the current case fatality rate in the

1:35:45

US, according to surveillance data,

1:35:47

is as low as zero point five

1:35:50

percent. What that's excellent.

1:35:53

It is excellent, but it bears

1:35:56

the question, is this rocky

1:35:58

mountain spotted fever or is this something

1:36:00

else? So let's look in other

1:36:02

parts of the world, what's

1:36:05

going on there? Well,

1:36:07

turns out that's hard to do. There's

1:36:12

not very good surveillance data

1:36:14

for much of the rest of the world. But

1:36:17

I did find some really good data for Mexico.

1:36:20

So in Mexico throughout

1:36:22

the two thousands, the incidence

1:36:25

of disease has also been increasing,

1:36:28

also dramatically. I don't have

1:36:30

an exact number. However,

1:36:33

unlike in the US, the case fatality

1:36:36

rate has also been increasing

1:36:39

rather than decreasing. Really,

1:36:41

the aggregate case fatality rate has been

1:36:44

between fourteen to eighteen percent

1:36:46

depending on the region of Mexico, but in

1:36:48

some years the case fatality rate

1:36:51

has been as high as forty percent.

1:36:53

Ooh, so

1:36:55

then I think, you know, there's a lot of questions

1:36:58

as to what is this.

1:37:00

Does this mean that we're looking at different diseases

1:37:03

or does it just mean that we're looking at drastic differences

1:37:05

in lack of availability of good

1:37:07

diagnostic tests, delays

1:37:10

in reaching a doctor to get

1:37:12

diagnosis or to get treatment. Another

1:37:16

issue is that a large proportion

1:37:18

of cases, not just in Mexico,

1:37:20

but in Mexico and also in the US, are

1:37:23

in children, because kids are running

1:37:25

around outside getting bitten by ticks, and

1:37:28

usually tetracyclines aren't used

1:37:30

as treatment for children because

1:37:33

it can permanently damage and discolor

1:37:35

your teeth. So

1:37:37

a lot of physicians might be hesitant

1:37:40

to prescribe doxycycling for kids.

1:37:42

But it turns out that for Rocky Mountain spotted fever,

1:37:44

it's a short enough course that it doesn't actually

1:37:46

increase the risk of tooth

1:37:48

discoloration. But maybe

1:37:51

you don't know that, and so then a kid

1:37:54

is delayed in getting the appropriate treatment

1:37:56

or receives the wrong kind of treatment,

1:37:59

and you have an increase in case

1:38:01

fatality rate, but

1:38:04

overall it's

1:38:07

less than one percent of spotted

1:38:10

fever group or keetsioses that are reported

1:38:12

in the United States are actually lab

1:38:14

confirmed.

1:38:16

Okay, so it's all

1:38:18

based on the trial.

1:38:21

Yeah, exactly. Oh and

1:38:23

the other triad piece is

1:38:26

often a tick exposure. So

1:38:28

some people say the triad is fever,

1:38:31

rash, tick exposure, or history of tick

1:38:33

exposures rather than the fever,

1:38:36

headache, and rash.

1:38:40

But not everyone reports tick

1:38:43

exposure, right, and that doesn't mean

1:38:45

that they weren't exposed, They just might never

1:38:47

have known it. Mm hmm, comforting

1:38:50

thought. Yeah, so

1:38:53

that's spotted

1:38:57

fever group, riquetsiosis, Rocky Mountain,

1:38:59

spotted fever. Today.

1:39:05

We never told Brett's.

1:39:06

Story, Okay, okay,

1:39:08

now we need to tell Brett's story. Cast

1:39:11

your mind back to twenty thirteen,

1:39:14

twenty thirteen, twenty.

1:39:16

Fourteen, twenty fourteen,

1:39:19

the summer, the summer of twenty

1:39:22

fourteen. Okay, listen, the rainy season

1:39:24

in Panama everyone, June.

1:39:27

As we mentioned, Aaron

1:39:29

Welsh did her research on tickborn

1:39:33

disease in Panama. That

1:39:35

was what her thesis was on. Our lab

1:39:38

is a disease ecology lab. We

1:39:41

studied tick

1:39:43

and other vector borne diseases.

1:39:46

Okay, my focus in particular,

1:39:48

well, my focus was the general

1:39:51

ecology of tics

1:39:54

and their pathogens as it related

1:39:56

to the climate gradient

1:39:58

across the isthmus and seasonality and

1:40:01

different animals and blah blah blah. But

1:40:05

you know, in all the research proposals

1:40:07

I ever wrote during

1:40:09

my PhD, I

1:40:12

always mentioned rakhetzi RACKETSI I, of

1:40:14

course, because it is

1:40:16

present there and it is a cause for concern

1:40:19

to So you want to understand where

1:40:21

they are, what the ticks are, and you

1:40:23

want to increase awareness of

1:40:26

a tick bite and a rash,

1:40:28

a fever and.

1:40:30

A possible headache. So June

1:40:34

of twenty fourteen, Brett,

1:40:37

my now husband, and I

1:40:39

flew back from Panama after my first

1:40:42

field season down there, to

1:40:44

California to stay with family for

1:40:46

a short time. And

1:40:49

on the plane ride back, he started

1:40:52

feeling crappy. Okay,

1:40:55

he did. He felt unwell. We

1:40:59

made it back to my brother's house

1:41:02

and I believe he had a fever,

1:41:05

but I'm sure we didn't have a thermometer. But

1:41:07

he felt he felt sick, like

1:41:09

he just really didn't feel good. And I was

1:41:11

like, gosh, like I hope you didn't come down with something,

1:41:14

you know. But he had

1:41:16

no respiratory symptoms. He wasn't coughing,

1:41:19

he didn't have you know, like

1:41:22

sore throat, any of the normal kind of

1:41:24

things I would associate with flu or a

1:41:26

cold. He just felt achy,

1:41:29

he felt unwell. He had a headache,

1:41:31

a fever. And

1:41:33

this lasted for a couple of days,

1:41:36

and then he

1:41:39

went to the bathroom. Is

1:41:43

he gonna be? Did

1:41:45

you tell him that you were going to tell this? Yes, I told him.

1:41:48

He goes, I knew as soon as you said you

1:41:50

were doing rocking Mountain spotted fever. He's

1:41:52

like, I've been waiting for this for three

1:41:54

years. Finally here. So

1:41:57

then he came out of the bathroom

1:42:00

room and he said, I

1:42:03

just I pulled

1:42:05

something. I pulled something

1:42:07

off of my

1:42:09

my the top of my butt crack.

1:42:12

And I said what and he was like yeah,

1:42:15

it was like there was a bunch of blood and some black

1:42:17

stuff. And I said

1:42:19

what. And then I grabbed

1:42:21

his arms and on his

1:42:24

wrists was a rash,

1:42:28

a red, blanching,

1:42:31

macular rash

1:42:34

that did not hurt and did not itch. And

1:42:36

oh, he also had one on his legs

1:42:38

that he hadn't even fully noticed up

1:42:41

to the blood. Okay, And

1:42:43

then he said, I pulled this thing off the top

1:42:45

of my butt. It was I. I

1:42:47

saw it. I squished it. There

1:42:50

was blood and then

1:42:52

black things, and I went and

1:42:54

I threw it in the toilet

1:42:57

and I flushed, and

1:43:01

I said, you just flush

1:43:03

a tick. You have a

1:43:05

ricketsia. You need to first

1:43:07

of all, go to the doctor. And second of all,

1:43:09

I can't believe that you threw the tick

1:43:12

in the toilet. I

1:43:14

was devastated. Oh, we all were.

1:43:16

Our whole lab knows this story. He's

1:43:19

also probably going to be like, you told it entirely

1:43:22

incorrectly, but I didn't.

1:43:24

This is how it happened.

1:43:26

Yeah, this is the This is the myth

1:43:28

as I know it now. At this point, it's legendary

1:43:31

status.

1:43:31

It was classic. I mean,

1:43:34

as soon as like and I can't I

1:43:36

will say, I can't remember if he if he had

1:43:38

the rash before he pulled

1:43:40

a tick off, or if if I didn't see

1:43:42

the rash until after he told me about pulling the

1:43:44

tick off. But as soon as he told me about that, I

1:43:47

looked and he had this rash, and I was like,

1:43:49

I knew that it

1:43:51

was. I was like, this is either racketzia

1:43:54

rakhetsi I and you're going to die,

1:43:57

or it's a lesser one, but either way, you need

1:43:59

to go get treatment. And he wouldn't listen

1:44:01

to me until we went

1:44:03

to go visit his parents, and I had to tell his

1:44:05

mother and she's the one who forced

1:44:07

him to go to the doctor and get

1:44:10

treatment because he wouldn't listen to me. So

1:44:13

thank you, Chris, because otherwise

1:44:15

he might be dead. So you went to

1:44:17

the doctor and he said that the doctor

1:44:19

like he told the doctor that

1:44:22

he thought he had rocommend and spot if you've readen, this

1:44:24

is why. And then apparently the doctor like

1:44:26

went and took his phone and then came

1:44:29

back in with his phone and was like, well, we

1:44:31

could do a test, but I think I should

1:44:33

just give you some antibiotics. And Brett

1:44:35

was like yep, and

1:44:38

he was better in a couple of days.

1:44:40

Oh well, I

1:44:43

am very glad that Brett

1:44:45

was better.

1:44:45

I'm still I'm still puzzling.

1:44:47

Over where you picked it up because you had.

1:44:49

Just been it' scuba diving

1:44:52

or something. We had been at Koiba,

1:44:54

so it could have been Koiba because we had hiked around

1:44:56

that a little bit, but also could have just been in Gamboa

1:44:59

because we went up to the ridge or whatever.

1:45:01

And well, yeah,

1:45:03

we'll never know because he threw

1:45:06

the tick in the toilet. Even

1:45:08

yesterday when I told him we were gonna tell

1:45:10

this story on the podcast, he was like, I

1:45:12

should have just thrown it in the trash.

1:45:15

I know, I know, Brett, like you had

1:45:17

killed it dead and good like,

1:45:22

oh, it could have been like.

1:45:26

My entire dissertation

1:45:29

right there, right like, at least that's a case

1:45:31

report. We could have been co

1:45:33

authors, Aarin, we could still be

1:45:36

co authors on a paper. Yeah, whip

1:45:39

my no, okay, don't jump, Brian.

1:45:46

So that's that's our story.

1:45:49

That's our story, you know.

1:45:50

Erin this I

1:45:52

feel like it lived up to my

1:45:55

expectations, my hype for this episode.

1:45:57

I had a great time me too. I

1:46:00

feel like it was back to our

1:46:02

roots in a way.

1:46:03

Yes, it really did. It felt good. It

1:46:05

felt good.

1:46:06

I was a little bit afraid to do something that was

1:46:08

like very close to my PhD, and

1:46:10

then I realized it doesn't have anything

1:46:13

to do with my PhD.

1:46:16

Well sources sources.

1:46:18

Yes, I mostly

1:46:21

used a book called Rocky Mountain

1:46:23

Spotted fever History of a twentieth century

1:46:25

disease by Victoria

1:46:28

Harden, which told

1:46:30

the complete story.

1:46:31

It was great. And

1:46:34

then a couple of papers and.

1:46:36

I will include those on our

1:46:38

references page on our website.

1:46:40

I read through a number of fun

1:46:43

papers about the biology and

1:46:45

a few good ones on

1:46:47

the epidemiology. We'll post all of our sources

1:46:49

on our website. This podcast will kill You dot com.

1:46:51

Under the episodes tab, you can find

1:46:54

all of our sources for this and every single

1:46:56

one of our episodes.

1:46:59

Yeah yeah, thank

1:47:01

you to Bloodmobile for providing the music for

1:47:03

this episode and all of our episodes.

1:47:07

And thank you everyone for listening.

1:47:10

Yes, thank you.

1:47:11

We hope that you enjoyed this one as much

1:47:13

as we enjoyed talking about it.

1:47:16

We really enjoyed this one, so we hope that

1:47:18

you guys did too, So well

1:47:22

with that, until next time, wash

1:47:24

your hands. You filled the animals

Rate

From The Podcast

This Podcast Will Kill You

This podcast might not actually kill you, but Erin Welsh and Erin Allmann Updyke cover so many things that can. In each episode, they tackle a different topic, teaching listeners about the biology, history, and epidemiology of a different disease or medical mystery. They do the scientific research, so you don’t have to.Since 2017, Erin and Erin have explored chronic and infectious diseases, medications, poisons, viruses, bacteria and scientific discoveries. They’ve researched public health subjects including plague, Zika, COVID-19, lupus, asbestos, endometriosis and more.Each episode is accompanied by a creative quarantini cocktail recipe and a non-alcoholic placeborita.Erin Welsh, Ph.D. is a co-host of the This Podcast Will Kill You. She is a disease ecologist and epidemiologist and works full-time as a science communicator through her work on the podcast. Erin Allmann Updyke, MD, Ph.D. is a co-host of This Podcast Will Kill You. She’s an epidemiologist and disease ecologist currently in the final stretch of her family medicine residency program.This Podcast Will Kill You is part of the Exactly Right podcast network that provides a platform for bold, creative voices to bring to life provocative, entertaining and relatable stories for audiences everywhere. The Exactly Right roster of podcasts covers a variety of topics including science, true crime, comedic interviews, news, pop culture and more. Podcasts on the network include My Favorite Murder with Karen Kilgariff and Georgia Hardstark, Buried Bones, That's Messed Up: An SVU Podcast and more.

Join Podchaser to...

  • Rate podcasts and episodes
  • Follow podcasts and creators
  • Create podcast and episode lists
  • & much more

Episode Tags

Do you host or manage this podcast?
Claim and edit this page to your liking.
,

Unlock more with Podchaser Pro

  • Audience Insights
  • Contact Information
  • Demographics
  • Charts
  • Sponsor History
  • and More!
Pro Features