Krys Johnson-O'Leary, MPH, PhD
@krysmjo.bsky.social
She/Her | America’s Poison Centers Epidemiologist| Momma | FL->PA->VA | Equity for all |#MaskUp #EpiSky #PublicHealth
Reposted by Krys Johnson-O'Leary, MPH, PhD
Of babies infected w/Hepatitis B, 90% develop chronic infection.
Of those, 1 in 4 will DIE.
They lose the ability to get rid of toxins & make important proteins. Their skin yellows, their abdomen swells, they’re uncomfortable. A fate no one deserves.
One we can avoid w/ vaccination.
.
Of those, 1 in 4 will DIE.
They lose the ability to get rid of toxins & make important proteins. Their skin yellows, their abdomen swells, they’re uncomfortable. A fate no one deserves.
One we can avoid w/ vaccination.
.
December 6, 2025 at 8:01 PM
Of babies infected w/Hepatitis B, 90% develop chronic infection.
Of those, 1 in 4 will DIE.
They lose the ability to get rid of toxins & make important proteins. Their skin yellows, their abdomen swells, they’re uncomfortable. A fate no one deserves.
One we can avoid w/ vaccination.
.
Of those, 1 in 4 will DIE.
They lose the ability to get rid of toxins & make important proteins. Their skin yellows, their abdomen swells, they’re uncomfortable. A fate no one deserves.
One we can avoid w/ vaccination.
.
Reposted by Krys Johnson-O'Leary, MPH, PhD
My teen, who had dreamt of being an astrophysicist, just told me he wants to go to law school because, “Science isn’t going to be a priority in the US in the future…I don’t want a job where I’ll be constantly worried my funding will be taken away.”
Gutting. How many future scientists have we lost?
Gutting. How many future scientists have we lost?
December 7, 2025 at 1:23 AM
My teen, who had dreamt of being an astrophysicist, just told me he wants to go to law school because, “Science isn’t going to be a priority in the US in the future…I don’t want a job where I’ll be constantly worried my funding will be taken away.”
Gutting. How many future scientists have we lost?
Gutting. How many future scientists have we lost?
Reposted by Krys Johnson-O'Leary, MPH, PhD
Bad framing: ACIP voted to scrap the universal hepatitis B vaccine recommendation for newborns.
Accurate framing: Anti-vax conspiracy theorists appointed to ACIP by Robert Kennedy Jr., who made a fortune as an anti-vax profiteer, voted to expose babies to a preventable, incurable, deadly illness.
Accurate framing: Anti-vax conspiracy theorists appointed to ACIP by Robert Kennedy Jr., who made a fortune as an anti-vax profiteer, voted to expose babies to a preventable, incurable, deadly illness.
December 5, 2025 at 4:12 PM
Bad framing: ACIP voted to scrap the universal hepatitis B vaccine recommendation for newborns.
Accurate framing: Anti-vax conspiracy theorists appointed to ACIP by Robert Kennedy Jr., who made a fortune as an anti-vax profiteer, voted to expose babies to a preventable, incurable, deadly illness.
Accurate framing: Anti-vax conspiracy theorists appointed to ACIP by Robert Kennedy Jr., who made a fortune as an anti-vax profiteer, voted to expose babies to a preventable, incurable, deadly illness.
Reposted by Krys Johnson-O'Leary, MPH, PhD
My aunt, the doctor,
told me a new joke.
She asked:
Why are we hearing
about hospital admissions
rising in the UK and Canada
but not in the US?
I said I did not know.
And so she answered:
Because in the US
no one can afford
to go to a hospital.
And then neither of us laughed.
told me a new joke.
She asked:
Why are we hearing
about hospital admissions
rising in the UK and Canada
but not in the US?
I said I did not know.
And so she answered:
Because in the US
no one can afford
to go to a hospital.
And then neither of us laughed.
December 5, 2025 at 8:27 PM
My aunt, the doctor,
told me a new joke.
She asked:
Why are we hearing
about hospital admissions
rising in the UK and Canada
but not in the US?
I said I did not know.
And so she answered:
Because in the US
no one can afford
to go to a hospital.
And then neither of us laughed.
told me a new joke.
She asked:
Why are we hearing
about hospital admissions
rising in the UK and Canada
but not in the US?
I said I did not know.
And so she answered:
Because in the US
no one can afford
to go to a hospital.
And then neither of us laughed.
Reposted by Krys Johnson-O'Leary, MPH, PhD
Why do babies need the hepatitis B vaccine if they aren’t high-risk?
Short answer: Because hepatitis B is a tricky virus.
Longer answer: Continue reading ⬇️
🧵1/9 @kkjetelina.bsky.social @meganranney.bsky.social @jasonlschwartz.bsky.social @enirenberg.bsky.social
Short answer: Because hepatitis B is a tricky virus.
Longer answer: Continue reading ⬇️
🧵1/9 @kkjetelina.bsky.social @meganranney.bsky.social @jasonlschwartz.bsky.social @enirenberg.bsky.social
February 19, 2025 at 2:46 PM
Why do babies need the hepatitis B vaccine if they aren’t high-risk?
Short answer: Because hepatitis B is a tricky virus.
Longer answer: Continue reading ⬇️
🧵1/9 @kkjetelina.bsky.social @meganranney.bsky.social @jasonlschwartz.bsky.social @enirenberg.bsky.social
Short answer: Because hepatitis B is a tricky virus.
Longer answer: Continue reading ⬇️
🧵1/9 @kkjetelina.bsky.social @meganranney.bsky.social @jasonlschwartz.bsky.social @enirenberg.bsky.social
Reposted by Krys Johnson-O'Leary, MPH, PhD
What did minimum wage get you each decade? In 2025, it buys you nothing but exhaustion.
There’s not a single place in America where a full-time minimum-wage worker can afford even a modest 2-bedroom. Not one. That’s the economy we’re living in. #TrumpAffordabilityCrisis
There’s not a single place in America where a full-time minimum-wage worker can afford even a modest 2-bedroom. Not one. That’s the economy we’re living in. #TrumpAffordabilityCrisis
December 4, 2025 at 6:32 PM
What did minimum wage get you each decade? In 2025, it buys you nothing but exhaustion.
There’s not a single place in America where a full-time minimum-wage worker can afford even a modest 2-bedroom. Not one. That’s the economy we’re living in. #TrumpAffordabilityCrisis
There’s not a single place in America where a full-time minimum-wage worker can afford even a modest 2-bedroom. Not one. That’s the economy we’re living in. #TrumpAffordabilityCrisis
Reposted by Krys Johnson-O'Leary, MPH, PhD
Autism is not a mental health condition in and of itself and ironically if we didn't have to fight to survive in a predominantly neurotypical world, most of us would not suffer with poor mental health at all!
December 4, 2025 at 4:51 PM
Autism is not a mental health condition in and of itself and ironically if we didn't have to fight to survive in a predominantly neurotypical world, most of us would not suffer with poor mental health at all!
Reposted by Krys Johnson-O'Leary, MPH, PhD
My takeaway from ACIP so far: they have not presented any evidence of harm from the hepatitis B vaccine, yet there are immense benefits.
December 4, 2025 at 3:50 PM
My takeaway from ACIP so far: they have not presented any evidence of harm from the hepatitis B vaccine, yet there are immense benefits.
Mastitis would have killed me thrice. I would be dead, dead. But SCIENCE!
December 4, 2025 at 6:24 PM
Mastitis would have killed me thrice. I would be dead, dead. But SCIENCE!
Reposted by Krys Johnson-O'Leary, MPH, PhD
Reposted by Krys Johnson-O'Leary, MPH, PhD
DRC has declared the Ebola outbreak in Kasai over - this is good news.
The case fatality rate in this outbreak, however, is very high (43 deaths out of 53 confirmed cases). And higher than in recent outbreaks.
The case fatality rate in this outbreak, however, is very high (43 deaths out of 53 confirmed cases). And higher than in recent outbreaks.
Congo declares its latest Ebola outbreak over, after 43 deaths
Congo on Monday announced the end of an Ebola outbreak that killed 43 people in one of the country's southern provinces.
www.statnews.com
December 1, 2025 at 10:28 PM
DRC has declared the Ebola outbreak in Kasai over - this is good news.
The case fatality rate in this outbreak, however, is very high (43 deaths out of 53 confirmed cases). And higher than in recent outbreaks.
The case fatality rate in this outbreak, however, is very high (43 deaths out of 53 confirmed cases). And higher than in recent outbreaks.
Two things would make my life exponentially easier: Universal childcare and universal healthcare.
#Parenting #OpenEnrollment
#Parenting #OpenEnrollment
November 21, 2025 at 5:56 PM
Two things would make my life exponentially easier: Universal childcare and universal healthcare.
#Parenting #OpenEnrollment
#Parenting #OpenEnrollment
Reposted by Krys Johnson-O'Leary, MPH, PhD
ICYMI, great piece from @jakescottmd.bsky.social yesterday:
CIDRAP Op-Ed: RSV prevention—a remarkable medical achievement finally realized
The transformation to having tools to prevent RSV happened so quickly that many haven't grasped its magnitude
www.cidrap.umn.edu/respiratory-...
CIDRAP Op-Ed: RSV prevention—a remarkable medical achievement finally realized
The transformation to having tools to prevent RSV happened so quickly that many haven't grasped its magnitude
www.cidrap.umn.edu/respiratory-...
November 20, 2025 at 9:45 PM
ICYMI, great piece from @jakescottmd.bsky.social yesterday:
CIDRAP Op-Ed: RSV prevention—a remarkable medical achievement finally realized
The transformation to having tools to prevent RSV happened so quickly that many haven't grasped its magnitude
www.cidrap.umn.edu/respiratory-...
CIDRAP Op-Ed: RSV prevention—a remarkable medical achievement finally realized
The transformation to having tools to prevent RSV happened so quickly that many haven't grasped its magnitude
www.cidrap.umn.edu/respiratory-...
Reposted by Krys Johnson-O'Leary, MPH, PhD
On this Trans Day of Remembrance, I'd like our allies to remember that silence is complicit to the violence against Trans people if witnessing mockery, abuse & threatening behavior
I know it's hard to speak up
Especially when bigots are scary
But there is power in every pushback
I believe in you!
I know it's hard to speak up
Especially when bigots are scary
But there is power in every pushback
I believe in you!
Additional scripts for cis het white men who want to be better allies:
“What a weird thing to say”
“Do you hear yourself right now?”
“You shouldn’t say shit like that to people”
“I won’t let you talk to them that way”
“That’s a disgusting opinion to have”
“Shut the fuck up, dude”
“What a weird thing to say”
“Do you hear yourself right now?”
“You shouldn’t say shit like that to people”
“I won’t let you talk to them that way”
“That’s a disgusting opinion to have”
“Shut the fuck up, dude”
Cis men truly need to understand the power of saying “that’s fucked up bro why would you say that” to another cis man
November 20, 2025 at 3:13 PM
On this Trans Day of Remembrance, I'd like our allies to remember that silence is complicit to the violence against Trans people if witnessing mockery, abuse & threatening behavior
I know it's hard to speak up
Especially when bigots are scary
But there is power in every pushback
I believe in you!
I know it's hard to speak up
Especially when bigots are scary
But there is power in every pushback
I believe in you!
Reposted by Krys Johnson-O'Leary, MPH, PhD
RFK Jr’s CDC posting lies about vaccines and autism on their website isn’t just misinformation, it’s intentionally weaponized eugenicist rhetoric that will kill people.
November 20, 2025 at 7:57 PM
RFK Jr’s CDC posting lies about vaccines and autism on their website isn’t just misinformation, it’s intentionally weaponized eugenicist rhetoric that will kill people.
Reposted by Krys Johnson-O'Leary, MPH, PhD
Handed a patient a printout of a CDC summary.
They were suspicious.
I pointed out the publication date.
It was from 2024.
“Oh, ok, so this is from when we could trust them.”
They were suspicious.
I pointed out the publication date.
It was from 2024.
“Oh, ok, so this is from when we could trust them.”
November 20, 2025 at 1:08 PM
Handed a patient a printout of a CDC summary.
They were suspicious.
I pointed out the publication date.
It was from 2024.
“Oh, ok, so this is from when we could trust them.”
They were suspicious.
I pointed out the publication date.
It was from 2024.
“Oh, ok, so this is from when we could trust them.”
Reposted by Krys Johnson-O'Leary, MPH, PhD
I miss the gym. I miss broccoli.
November 20, 2025 at 8:11 PM
I miss the gym. I miss broccoli.
Reposted by Krys Johnson-O'Leary, MPH, PhD
“Since 1998, independent researchers have conducted more than 40 high-quality studies involving over 5.6 million people. The conclusion is clear and unambiguous: There’s no link between vaccines and autism." -Dr. Susan Kressly, AAP President on recent changes to the CDC's website
November 20, 2025 at 3:24 PM
“Since 1998, independent researchers have conducted more than 40 high-quality studies involving over 5.6 million people. The conclusion is clear and unambiguous: There’s no link between vaccines and autism." -Dr. Susan Kressly, AAP President on recent changes to the CDC's website
Reposted by Krys Johnson-O'Leary, MPH, PhD
The Dept. of Education is making nursing degrees HARDER to afford, in the middle of a nursing shortage. That’s not reform, that’s reckless.
Nurses keep our hospitals running, save our families, and hold our healthcare system together. They deserve MORE support, not less.
Nurses keep our hospitals running, save our families, and hold our healthcare system together. They deserve MORE support, not less.
November 19, 2025 at 10:34 PM
The Dept. of Education is making nursing degrees HARDER to afford, in the middle of a nursing shortage. That’s not reform, that’s reckless.
Nurses keep our hospitals running, save our families, and hold our healthcare system together. They deserve MORE support, not less.
Nurses keep our hospitals running, save our families, and hold our healthcare system together. They deserve MORE support, not less.
Reposted by Krys Johnson-O'Leary, MPH, PhD
If you use GMail, AI (Gemini) was turned on yesterday by default and now scans all of your content for machine learning. To turn off, go to Settings>General and scroll down. Uncheck the box for "Smart features."
There's other "Smart" add-ons as well, but that's the one that reads your content.
There's other "Smart" add-ons as well, but that's the one that reads your content.
November 20, 2025 at 5:32 PM
If you use GMail, AI (Gemini) was turned on yesterday by default and now scans all of your content for machine learning. To turn off, go to Settings>General and scroll down. Uncheck the box for "Smart features."
There's other "Smart" add-ons as well, but that's the one that reads your content.
There's other "Smart" add-ons as well, but that's the one that reads your content.
Reposted by Krys Johnson-O'Leary, MPH, PhD
Who you vote for… matters 👇🏼👇🏼
November 16, 2025 at 11:18 PM
Who you vote for… matters 👇🏼👇🏼
Reposted by Krys Johnson-O'Leary, MPH, PhD
First ever human case of H5N5 avian flu confirmed in Washington state
Previous human detections in the United States have involved the H5N1 strain.
www.cidrap.umn.edu/a...
Previous human detections in the United States have involved the H5N1 strain.
www.cidrap.umn.edu/a...
November 17, 2025 at 8:52 PM
First ever human case of H5N5 avian flu confirmed in Washington state
Previous human detections in the United States have involved the H5N1 strain.
www.cidrap.umn.edu/a...
Previous human detections in the United States have involved the H5N1 strain.
www.cidrap.umn.edu/a...
Reposted by Krys Johnson-O'Leary, MPH, PhD
Reposted by Krys Johnson-O'Leary, MPH, PhD
Here’s the thing about healthcare premiums about to skyrocket: they will never come back down, short of a complete overhaul of our system for universal healthcare. Which clearly won’t happen bc of all the money tied up between health and politics.
November 13, 2025 at 1:51 AM
Here’s the thing about healthcare premiums about to skyrocket: they will never come back down, short of a complete overhaul of our system for universal healthcare. Which clearly won’t happen bc of all the money tied up between health and politics.
Reposted by Krys Johnson-O'Leary, MPH, PhD
My takeaway from every new Epstein revelation is that some powerful people victimized many powerless young women, many more knew, some actively enabled it--and we're still being told that MeToo and accountability for sexual violence have gone too far
November 12, 2025 at 5:05 PM
My takeaway from every new Epstein revelation is that some powerful people victimized many powerless young women, many more knew, some actively enabled it--and we're still being told that MeToo and accountability for sexual violence have gone too far