Mark Dexter
@pedsdocdex.bsky.social
Pediatric intensivist, lover of vaccines,
pie-diatrician, currently in Boston.
pie-diatrician, currently in Boston.
Reposted by Mark Dexter
Seriously. When I was on my ortho elective, I followed the doc into a room where a pt with a possible septic ankle had linezolid running. Instead of finding the nurse to shut it off he tied a knot in the line
December 14, 2025 at 4:07 PM
Seriously. When I was on my ortho elective, I followed the doc into a room where a pt with a possible septic ankle had linezolid running. Instead of finding the nurse to shut it off he tied a knot in the line
Reposted by Mark Dexter
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 Mark Dexter
Every time ACIP meets, Bill Cassidy (R, Coward City) makes pathetic mewling sounds about how bad the committee is.
It is Bill Cassidy’s fault that ACIP is no longer a legitimate scientific body.
Sir, you are a fucking U.S. Senator. Impeach RFK Jr or STFU.
It is Bill Cassidy’s fault that ACIP is no longer a legitimate scientific body.
Sir, you are a fucking U.S. Senator. Impeach RFK Jr or STFU.
December 5, 2025 at 12:06 AM
Every time ACIP meets, Bill Cassidy (R, Coward City) makes pathetic mewling sounds about how bad the committee is.
It is Bill Cassidy’s fault that ACIP is no longer a legitimate scientific body.
Sir, you are a fucking U.S. Senator. Impeach RFK Jr or STFU.
It is Bill Cassidy’s fault that ACIP is no longer a legitimate scientific body.
Sir, you are a fucking U.S. Senator. Impeach RFK Jr or STFU.
Dr. Meissner is a former colleague of mine. I pretty much never agreed with him politically, but I’m glad that he’s kept his sense of doing right for kids when it comes to vaccination.
Meissner: "The fact that hepatitis has not occured in someone who has received the Hep B series is about the best proof you're going to get that the vaccine is effective."
#ACIP
#ACIP
December 5, 2025 at 3:57 PM
Dr. Meissner is a former colleague of mine. I pretty much never agreed with him politically, but I’m glad that he’s kept his sense of doing right for kids when it comes to vaccination.
Reposted by Mark Dexter
People will die, and are currently dying, because RFK was granted one of the most powerful megaphones in the country. Two people who could have thrown barriers in front of his climb decided not to; there's a sex scandal here but it is not the biggest scandal.
November 26, 2025 at 11:30 PM
People will die, and are currently dying, because RFK was granted one of the most powerful megaphones in the country. Two people who could have thrown barriers in front of his climb decided not to; there's a sex scandal here but it is not the biggest scandal.
My new hero.
OMG! I just got off the plane in Asheville and RFK Jr. Was boarding and someone passed by him and said “quack”
November 15, 2025 at 8:27 PM
My new hero.
I don’t know the specifics for Minnesota, but overall THINGS WERE PRETTY BAD BEFORE THE ACA!
Tom Emmer: "You're gonna have to create high risk pools again. Just go back where Minnesota was before the ACA."
November 12, 2025 at 9:48 PM
I don’t know the specifics for Minnesota, but overall THINGS WERE PRETTY BAD BEFORE THE ACA!
This man is supposedly a physician. 🤦♂️
Tell me you don’t understand risk pools without telling me you don’t understand risk pools
November 10, 2025 at 4:56 PM
This man is supposedly a physician. 🤦♂️
I can confidently say I’d rather be alive with wrinkles than dead from botulism. 🤦♂️
there is a "diy aesthetics" subreddit where people do their own botox, on their own faces in their home with no medical knowledge or training and I think I might have to go lie down after reading this for 10 minutes
October 26, 2025 at 3:23 PM
I can confidently say I’d rather be alive with wrinkles than dead from botulism. 🤦♂️
Reposted by Mark Dexter
Dear parents of a certain age:
if you want your kids to help you with your medical care, please grant them access to your electronic medical record
we cannot listen to BOTH of you reading lab values INCORRECTLY over speakerphone AT THE SAME TIME
if you want your kids to help you with your medical care, please grant them access to your electronic medical record
we cannot listen to BOTH of you reading lab values INCORRECTLY over speakerphone AT THE SAME TIME
October 23, 2025 at 6:05 PM
Dear parents of a certain age:
if you want your kids to help you with your medical care, please grant them access to your electronic medical record
we cannot listen to BOTH of you reading lab values INCORRECTLY over speakerphone AT THE SAME TIME
if you want your kids to help you with your medical care, please grant them access to your electronic medical record
we cannot listen to BOTH of you reading lab values INCORRECTLY over speakerphone AT THE SAME TIME
Happy new PALS guidelines release day, everyone!!! 🎉
October 22, 2025 at 11:53 AM
Happy new PALS guidelines release day, everyone!!! 🎉
It’s 2025. Why are you putting any fewer than 10 digits in a callback number when paging someone?
October 11, 2025 at 4:49 PM
It’s 2025. Why are you putting any fewer than 10 digits in a callback number when paging someone?
RFK Jr. saying that a fetus grows inside the placenta sounds really dumb until you remember that the entirety of his medical training is having had a worm live inside of his brain.
October 9, 2025 at 10:31 PM
RFK Jr. saying that a fetus grows inside the placenta sounds really dumb until you remember that the entirety of his medical training is having had a worm live inside of his brain.
Reposted by Mark Dexter
“A study, published on Wednesday in the New England Journal of Medicine, showed that last season’s 2024–2025 mRNA COVID vaccines reduced people’s risk of emergency department visits by 29%, their risk of hospitalizations by 39% & their risk of death by 64%”
Benefits were seen even if 0 risk factors
Benefits were seen even if 0 risk factors
Annual COVID Vaccines Protect People against Severe Disease, Even with Prior Immunity
"The new research also “calls into question the idea that younger individuals and those without risk factors don’t need the vaccine,” Viswanathan says."
"The new research also “calls into question the idea that younger individuals and those without risk factors don’t need the vaccine,” Viswanathan says."
Annual COVID Vaccines Save Lives, New Study Shows
A new study shows that receiving an updated COVID vaccine reduced people’s risk of severe disease and death in all age groups, regardless of immunity from prior infection or vaccination
www.scientificamerican.com
October 9, 2025 at 11:48 AM
“A study, published on Wednesday in the New England Journal of Medicine, showed that last season’s 2024–2025 mRNA COVID vaccines reduced people’s risk of emergency department visits by 29%, their risk of hospitalizations by 39% & their risk of death by 64%”
Benefits were seen even if 0 risk factors
Benefits were seen even if 0 risk factors
Please don’t take health advice from someone who can’t pronounce the word “acetaminophen.”
September 23, 2025 at 7:25 PM
Please don’t take health advice from someone who can’t pronounce the word “acetaminophen.”
He’s MAGA through and through, but at least he’s a legit peds ID doc and vaccine expert.
One did - Cody Meissner. God bless the poor Dr for trying to bring some sanity to these utterly unreal proceedings all day.
September 18, 2025 at 10:26 PM
He’s MAGA through and through, but at least he’s a legit peds ID doc and vaccine expert.
Reposted by Mark Dexter
In case anyone has forgotten, vaccines are literally MIRACLES and one of the greatest inventions in the history of mankind.
Seriously MAGIC.
Seriously MAGIC.
September 18, 2025 at 10:13 PM
In case anyone has forgotten, vaccines are literally MIRACLES and one of the greatest inventions in the history of mankind.
Seriously MAGIC.
Seriously MAGIC.
Believe it or not, “debate me, bro” isn’t how we *do* science. www.statnews.com/2025/09/18/c...
Federal vaccine adviser says former CDC officials can’t be trusted unless they agree to ‘public debate’
The chair of a key vaccine committee that advises the CDC will strike a confrontational tone at meeting of the panel, according to a copy of his prepared remarks.
www.statnews.com
September 18, 2025 at 10:21 PM
Believe it or not, “debate me, bro” isn’t how we *do* science. www.statnews.com/2025/09/18/c...
Reposted by Mark Dexter
Full quote: "After seeing his Senate Finance testimony and the number of misstatements, seeing what he's asked our scientists to do and to compromise their integrity, and [given] the children that have died under his watch, I think he should resign."
ALSOBROOKS: Do you believe Secretary Kennedy is incompetent and dangerous to the American people's health?
HOURY: I think he should resign
HOURY: I think he should resign
September 17, 2025 at 5:24 PM
Full quote: "After seeing his Senate Finance testimony and the number of misstatements, seeing what he's asked our scientists to do and to compromise their integrity, and [given] the children that have died under his watch, I think he should resign."
Reposted by Mark Dexter
NIH Director’s Pulsing Neck Tumor Announces Cancer Research Cuts
September 16, 2025 at 7:00 PM
NIH Director’s Pulsing Neck Tumor Announces Cancer Research Cuts
I’m glad to work at a hospital that’s at least fighting back against this administration.
JUST IN: A judge quashed the subpoena to Boston Children's Hospital by the DoJ that sought the records of trans patients.
storage.courtlistener.com/recap/gov.us...
storage.courtlistener.com/recap/gov.us...
September 10, 2025 at 12:04 AM
I’m glad to work at a hospital that’s at least fighting back against this administration.
To be blatant about the numbers, that’s approximately TWO THOUSAND NEEDLESSLY DEAD CHILDREN.
September 9, 2025 at 3:16 PM
To be blatant about the numbers, that’s approximately TWO THOUSAND NEEDLESSLY DEAD CHILDREN.
Reposted by Mark Dexter
This is how people who attacked abortion eroded abortion—access. People forget that even with Roe as law of the land many abortion seekers in this country could not obtain one (conveniently).
There is no need to ban vaccines entirely to remove access. Confusion, logistics, cost, and liability are quite sufficient! ACIP could do far more damage to our precarious vaccine infrastructure in just a few weeks. RFK must be stopped. Keep the momentum! Fire RFK.
September 8, 2025 at 2:32 PM
This is how people who attacked abortion eroded abortion—access. People forget that even with Roe as law of the land many abortion seekers in this country could not obtain one (conveniently).