Michael Osterholm, PhD, MPH
@mtosterholm.bsky.social
Director, CIDRAP
New episodes of our podcast on the latest infectious disease threats: https://www.cidrap.umn.edu/osterholm-update
New episodes of our podcast on the latest infectious disease threats: https://www.cidrap.umn.edu/osterholm-update
Reposted by Michael Osterholm, PhD, MPH
The Vaccine Integrity Project at CIDRAP is launching an independent review of the HPV vaccine, using transparent methods and drawing on more than a decade of data
January 8, 2026 at 9:04 PM
The Vaccine Integrity Project at CIDRAP is launching an independent review of the HPV vaccine, using transparent methods and drawing on more than a decade of data
Reposted by Michael Osterholm, PhD, MPH
Do you appreciate CIDRAP News' journalism? Here's a way to show your support. Help fund our non-profit newsroom so we can provide even more hard-hitting stories about infectious disease, particularly the assault on childhood vaccinations.
makingagift.umn.edu/give/fund.ht...
makingagift.umn.edu/give/fund.ht...
Donate to the University of Minnesota
There are many ways to give that not only help create excellence at the U, but also contribute to your own personal and financial goals.
makingagift.umn.edu
December 10, 2025 at 4:51 PM
Do you appreciate CIDRAP News' journalism? Here's a way to show your support. Help fund our non-profit newsroom so we can provide even more hard-hitting stories about infectious disease, particularly the assault on childhood vaccinations.
makingagift.umn.edu/give/fund.ht...
makingagift.umn.edu/give/fund.ht...
Reposted by Michael Osterholm, PhD, MPH
"The Big One," by @mtosterholm & Mark Olshaker, made the New York Post's list of the 15 best nonfiction books of 2025
nypost.com/2025/12/2...
nypost.com/2025/12/2...
December 31, 2025 at 3:59 AM
"The Big One," by @mtosterholm & Mark Olshaker, made the New York Post's list of the 15 best nonfiction books of 2025
nypost.com/2025/12/2...
nypost.com/2025/12/2...
🎉 Happy (almost) New Year! Due to the holiday, our next podcast drops Friday the 2nd instead of Thursday. See you then!
Heads up that, because tomorrow is New Year's Day, this week's Osterholm Update podcast episode will post on Friday, Jan 2. Happy New Year from all of us at CIDRAP!
December 31, 2025 at 4:22 PM
🎉 Happy (almost) New Year! Due to the holiday, our next podcast drops Friday the 2nd instead of Thursday. See you then!
Reposted by Michael Osterholm, PhD, MPH
New Osterholm Update podcast episode! @mtosterholm & @cvdall discuss why we shouldn’t compare other countries’ vaccine schedules to the US schedule. And Dr O continues to cover the infant botulism outbreak & answers an ID Query about New World Screwworm
www.cidrap.umn.edu/a...
www.cidrap.umn.edu/a...
December 18, 2025 at 7:42 PM
New Osterholm Update podcast episode! @mtosterholm & @cvdall discuss why we shouldn’t compare other countries’ vaccine schedules to the US schedule. And Dr O continues to cover the infant botulism outbreak & answers an ID Query about New World Screwworm
www.cidrap.umn.edu/a...
www.cidrap.umn.edu/a...
Reposted by Michael Osterholm, PhD, MPH
New! Public Health Alerts, a joint CIDRAP/NEJM Evidence effort to strengthen early detection and response to emerging health threats.
First 2 reports:
• Community transmission of clade Ib mpox in LA area
• Flu virus characteristics and vax effectiveness data supporting WHO 2025–26 strain selections
First 2 reports:
• Community transmission of clade Ib mpox in LA area
• Flu virus characteristics and vax effectiveness data supporting WHO 2025–26 strain selections
December 17, 2025 at 5:36 PM
New! Public Health Alerts, a joint CIDRAP/NEJM Evidence effort to strengthen early detection and response to emerging health threats.
First 2 reports:
• Community transmission of clade Ib mpox in LA area
• Flu virus characteristics and vax effectiveness data supporting WHO 2025–26 strain selections
First 2 reports:
• Community transmission of clade Ib mpox in LA area
• Flu virus characteristics and vax effectiveness data supporting WHO 2025–26 strain selections
Reposted by Michael Osterholm, PhD, MPH
Public Health Alerts reports are free, expert-reviewed, and designed to help public health leaders act fast.
www.cidrap.umn.edu/public-healt...
www.cidrap.umn.edu/public-healt...
Public Health Alerts
CIDRAP provides an initiative dedicated to safeguarding vaccine use in the U.S, so that it remains grounded in the best available science.
www.cidrap.umn.edu
December 17, 2025 at 5:36 PM
Public Health Alerts reports are free, expert-reviewed, and designed to help public health leaders act fast.
www.cidrap.umn.edu/public-healt...
www.cidrap.umn.edu/public-healt...
Reposted by Michael Osterholm, PhD, MPH
In a world of profound change in public health, we are grateful to provide timely, comprehensive, and authoritative news, insights, and “straight talk” on emerging infectious disease threats. Please consider a gift to help make it possible, thanks!
Donate to the University of Minnesota
There are many ways to give that not only help create excellence at the U, but also contribute to your own personal and financial goals.
makingagift.umn.edu
December 10, 2025 at 5:07 PM
In a world of profound change in public health, we are grateful to provide timely, comprehensive, and authoritative news, insights, and “straight talk” on emerging infectious disease threats. Please consider a gift to help make it possible, thanks!
This ACIP meeting set a historic precedent for the erosion and destruction of science-based vaccine programs in our country.
Special Osterholm Update podcast edition! @mtosterholm & @cvdall discuss the recent decision by ACIP (CDC's vaccine advisers) to end universal hepatitis B birth dose recommendations and the impact it will have on public health
www.cidrap.umn.edu/a...
www.cidrap.umn.edu/a...
December 8, 2025 at 10:13 PM
This ACIP meeting set a historic precedent for the erosion and destruction of science-based vaccine programs in our country.
In voting to eliminate the universal birth dose of the hepatitis B vaccine, ACIP ignored decades of evidence confirming its strong safety profile and effectiveness. Its decision will result in more hepatitis B infections and more people with chronic liver disease.
December 5, 2025 at 8:03 PM
In voting to eliminate the universal birth dose of the hepatitis B vaccine, ACIP ignored decades of evidence confirming its strong safety profile and effectiveness. Its decision will result in more hepatitis B infections and more people with chronic liver disease.
Reposted by Michael Osterholm, PhD, MPH
CIDRAP’s Vaccine Integrity Project has released a major evidence review: 400+ studies/reports, 40 years of data—and the conclusion is unmistakable.
There is no evidence supporting a delay in the hepatitis B birth dose.
Full report: www.cidrap.umn.edu/vaccine-inte...
There is no evidence supporting a delay in the hepatitis B birth dose.
Full report: www.cidrap.umn.edu/vaccine-inte...
Vaccine Integrity Project - Hepatitis B
www.cidrap.umn.edu
December 2, 2025 at 12:27 PM
CIDRAP’s Vaccine Integrity Project has released a major evidence review: 400+ studies/reports, 40 years of data—and the conclusion is unmistakable.
There is no evidence supporting a delay in the hepatitis B birth dose.
Full report: www.cidrap.umn.edu/vaccine-inte...
There is no evidence supporting a delay in the hepatitis B birth dose.
Full report: www.cidrap.umn.edu/vaccine-inte...
The infant botulism outbreak is an example of what public health does everyday to save lives--to identify the source and put an end to it.
New "Osterholm Update" podcast episode! @mtosterholm & @cvdall review the latest flu trends and how this year's vaccine compares to circulating strains. Dr. O also discusses H5N1 impact on mammals in Antarctica and answers an ID Query on infant botulism
www.cidrap.umn.edu/a...
www.cidrap.umn.edu/a...
November 21, 2025 at 5:45 PM
The infant botulism outbreak is an example of what public health does everyday to save lives--to identify the source and put an end to it.
Public trust is not a renewable resource. Our health agencies must be unwavering in their commitment to evidence, transparency, and integrity. Anything less jeopardizes the public’s ability to make informed decisions and ultimately puts more people at risk.
As public health citizens, we rely on agencies like the CDC for science-based guidance. But last night’s change to its “Vaccines & Autism” page - now hinting at a possible vaccine link - deeply undermines that trust. When credible institutions shift in ways that echo anti-vax rhetoric, we all lose.
November 20, 2025 at 8:55 PM
Public trust is not a renewable resource. Our health agencies must be unwavering in their commitment to evidence, transparency, and integrity. Anything less jeopardizes the public’s ability to make informed decisions and ultimately puts more people at risk.
Don't miss this webinar happening TOMORROW #WAAW
To learn more about opportunities to improve antibiotic use in adults and kids, please join us on Nov 20 at 12:00 noon CST for an enlightening discussion with Drs @tttimbrook.bsky.social, Chanu Rhee, and Jeffrey S. Gerber. CE is available! www.cidrap.umn.edu/antimicrobia...
November 19, 2025 at 9:06 PM
Don't miss this webinar happening TOMORROW #WAAW
Reposted by Michael Osterholm, PhD, MPH
Happy Day 1 of World AMR Awareness Week (#WAAW2025)! Today, we're highlighting some of the research that @cidrap.bsky.social has published over the years—from a 3-part analysis of outcomes research to a report on the introduction of typhoid conjugate vaccines www.cidrap.umn.edu/antimicrobia...
November 18, 2025 at 4:06 PM
Happy Day 1 of World AMR Awareness Week (#WAAW2025)! Today, we're highlighting some of the research that @cidrap.bsky.social has published over the years—from a 3-part analysis of outcomes research to a report on the introduction of typhoid conjugate vaccines www.cidrap.umn.edu/antimicrobia...
Reposted by Michael Osterholm, PhD, MPH
Just 10 days away! Make sure to register to secure your spot!
To learn more about opportunities to improve antibiotic use in adults and kids, please join us on Nov 20 at 12:00 noon CST for an enlightening discussion with Drs @tttimbrook.bsky.social, Chanu Rhee, and Jeffrey S. Gerber. CE is available! www.cidrap.umn.edu/antimicrobia...
November 10, 2025 at 7:55 PM
Just 10 days away! Make sure to register to secure your spot!
This is a wakeup call about society. It's not about politics, it's not about partisanship. It's about who we are as kind people.
New Osterholm Update podcast episode! @mtosterholm & @cvdall discuss a recent paper from the Vax Integrity Project, a CIDRAP-NEJM Evidence collaboration, latest measles & respi virus data, & how the govt shutdown is affecting public health surveillance
www.cidrap.umn.edu/a...
www.cidrap.umn.edu/a...
October 31, 2025 at 2:14 PM
This is a wakeup call about society. It's not about politics, it's not about partisanship. It's about who we are as kind people.
Reposted by Michael Osterholm, PhD, MPH
A recent HHS video is filled with selective data and misleading claims about vaccines.
Dr. Michael Osterholm of @CIDRAP breaks down how – and why - it misleads.
🎥 Watch here: youtu.be/Lh5hP6zcVrs
Dr. Michael Osterholm of @CIDRAP breaks down how – and why - it misleads.
🎥 Watch here: youtu.be/Lh5hP6zcVrs
Vaccine Integrity Project - Response to HHS claims about vaccines (Oct 2025)
YouTube video by CIDRAP
youtu.be
October 22, 2025 at 10:01 PM
A recent HHS video is filled with selective data and misleading claims about vaccines.
Dr. Michael Osterholm of @CIDRAP breaks down how – and why - it misleads.
🎥 Watch here: youtu.be/Lh5hP6zcVrs
Dr. Michael Osterholm of @CIDRAP breaks down how – and why - it misleads.
🎥 Watch here: youtu.be/Lh5hP6zcVrs
💉🛟 Don't miss this incredible synthesis of evidence on respiratory virus vaccines! #IDSky
The Vaccine Integrity Project’s new Executive Summary on COVID, RSV, & flu vax pulls together findings from 509 published studies to show where we stand for the 2025–26 season.
Highlights & interactive data tool: www.cidrap.umn.edu/vaccine-inte...
Full manuscript: bit.ly/42MMMNu
Highlights & interactive data tool: www.cidrap.umn.edu/vaccine-inte...
Full manuscript: bit.ly/42MMMNu
Vaccine Integrity Project - Data visualization tool
www.cidrap.umn.edu
October 22, 2025 at 2:22 PM
💉🛟 Don't miss this incredible synthesis of evidence on respiratory virus vaccines! #IDSky
Reposted by Michael Osterholm, PhD, MPH
Latest from the Vaccine Integrity Project:
Viewpoint: We owe parents real data before we mess with kids' vaccination schedule
Combination vaccines exist for a reason: They reduce how many injections children receive and parents' stress
www.cidrap.umn.edu/c...
Viewpoint: We owe parents real data before we mess with kids' vaccination schedule
Combination vaccines exist for a reason: They reduce how many injections children receive and parents' stress
www.cidrap.umn.edu/c...
October 15, 2025 at 12:59 PM
Latest from the Vaccine Integrity Project:
Viewpoint: We owe parents real data before we mess with kids' vaccination schedule
Combination vaccines exist for a reason: They reduce how many injections children receive and parents' stress
www.cidrap.umn.edu/c...
Viewpoint: We owe parents real data before we mess with kids' vaccination schedule
Combination vaccines exist for a reason: They reduce how many injections children receive and parents' stress
www.cidrap.umn.edu/c...
Reposted by Michael Osterholm, PhD, MPH
New Osterholm Update podcast episode! @mtosterholm & @cvdall discuss recent layoffs & layoff reversals at CDC, comments from the administration on the MMR vaccine, the latest respiratory virus data, an update on pertussis cases, & herd immunity
www.cidrap.umn.edu/a...
www.cidrap.umn.edu/a...
October 16, 2025 at 5:15 PM
New Osterholm Update podcast episode! @mtosterholm & @cvdall discuss recent layoffs & layoff reversals at CDC, comments from the administration on the MMR vaccine, the latest respiratory virus data, an update on pertussis cases, & herd immunity
www.cidrap.umn.edu/a...
www.cidrap.umn.edu/a...
Science isn't truth, it's the pursuit of truth. As public health comes under increasing attack, we must stay rooted in evidence, whether we're talking about vaccines, acetaminophen, or COVID-19. Our communities' health depends on it.
New "Osterholm Update" podcast episode!
@mtosterholm & @cvdall break down the CDC’s recent ACIP meeting and ongoing uncertainty around updated COVID vaccine recommendations, possible changes to the National Vaccine Injury Compensation Program, and more.
www.cidrap.umn.edu/a...
@mtosterholm & @cvdall break down the CDC’s recent ACIP meeting and ongoing uncertainty around updated COVID vaccine recommendations, possible changes to the National Vaccine Injury Compensation Program, and more.
www.cidrap.umn.edu/a...
October 2, 2025 at 6:46 PM
Science isn't truth, it's the pursuit of truth. As public health comes under increasing attack, we must stay rooted in evidence, whether we're talking about vaccines, acetaminophen, or COVID-19. Our communities' health depends on it.
Reposted by Michael Osterholm, PhD, MPH
"We are in a state of free fall." My new @vanityfair.com Q&A w/ pandemic preparedness expert @mtosterholm.bsky.social on publication of his new book, "The Big One: How We Must Prepare For Future Deadly Pandemics." www.vanityfair.com/news/story/p...
Pandemic Expert Michael T. Osterholm Thinks a Future COVID Could Be So Much Worse
In a sobering interview, the respected infectious disease expert expresses concern over our willful deconstruction of parts of our vaccine infrastructure in Donald Trump’s second term—especially becau...
www.vanityfair.com
September 30, 2025 at 4:32 PM
"We are in a state of free fall." My new @vanityfair.com Q&A w/ pandemic preparedness expert @mtosterholm.bsky.social on publication of his new book, "The Big One: How We Must Prepare For Future Deadly Pandemics." www.vanityfair.com/news/story/p...
The latest "Viewpoint" from the Vaccine Integrity Project
Viewpoint: What we don’t see about #vaccines COULD hurt us
The Vaccine Integrity Project staff and advisors note the conspicuous absence of US health agency vaccine campaigns and annual vaccination reminders ahead of respiratory virus season.
www.cidrap.umn.edu/c...
The Vaccine Integrity Project staff and advisors note the conspicuous absence of US health agency vaccine campaigns and annual vaccination reminders ahead of respiratory virus season.
www.cidrap.umn.edu/c...
September 30, 2025 at 3:39 PM
The latest "Viewpoint" from the Vaccine Integrity Project