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Jessica Malaty Rivera, MS

@jessicamalaty.bsky.social
8.5K followers 345 following 198 posts

Infectious Disease Epidemiologist & Science Communicator Tracking Pandemics & Infodemics @bsph-chs DrPH student @JohnsHopkinsSPH Prev COVID Tracking Project #SciComm Lead & Podcast Host #MakingScienceMakeSense on @instagram

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Reposted by Jessica Malaty Rivera, MS
ASTHO @asthonews.bsky.social · 28/09/2026
New questions about the mRNA flu vaccine are emerging. On PHRME: @jessicamalaty.bsky.social of The Public Good Projects shares strategies for building trust, addressing concerns, and keeping evidence-based information at the center of vaccine conversations. 🎧: discover.astho.org/4hOXdrr.
Public Health Review Morning Edition banner featuring podcast guest Jessica Malaty Rivera.
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Reposted by Jessica Malaty Rivera, MS
Jeremy Faust, MD @jeremyfaust.bsky.social · 25/06/2026
Join us SOON at Catch Steak Aspen for: Story Rx: How Storytelling Expands Health Innovation. We’ll be talking about THE MOST IMPORTANT topic, The Pitt! Today, 2:30-4:00pm, followed by a good hang. With @jessicamalaty.bsky.social and more!
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Reposted by Jessica Malaty Rivera, MS
Kristian G. Andersen @kgandersen.bsky.social · 21/05/2026
Since we're now navigating 𝘌𝘣𝘰𝘭𝘢𝘷𝘪𝘳𝘶𝘴 (but not Ebola virus..) yet again, just to clarify:⁣⁣ ⁣⁣ "𝘌𝘣𝘰𝘭𝘢𝘷𝘪𝘳𝘶𝘴" is the genus. E.g., "𝘉𝘶𝘯𝘥𝘪𝘣𝘶𝘨𝘺𝘰 𝘦𝘣𝘰𝘭𝘢𝘷𝘪𝘳𝘶𝘴" being the species, with the virus itself being "Bundibugyo virus". Similarly, "𝘡𝘢𝘪𝘳𝘦 𝘦𝘣𝘰𝘭𝘢𝘷𝘪𝘳𝘶𝘴" as the species, "Ebola virus" the virus.⁣
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Reposted by Jessica Malaty Rivera, MS
Timothy Caulfield @caulfieldtim.bsky.social · 24/04/2026
🚨 Great analysis of 21 harmful LIES by RFK Jr makingsciencemakesense.substack.com/p/rfk-jr-ask... by @jessicamalaty.bsky.social @drjessicaknurick.bsky.social @angierasmussen.bsky.social SUM: LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE, LIE!
makingsciencemakesense.substack.com
RFK Jr. Asked for “One Piece of Misinformation” He’s Ever Said. Here are 21.
(Just from the last week)
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Reposted by Jessica Malaty Rivera, MS
Laura Weiss @lauralew105.bsky.social · 08/04/2026
Check out my deep dive on the "Make America Healthy Again" movement for @prismreports.org: Thank you to @jessicamalaty.bsky.social @seemiaroll.bsky.social @drdemetre.bsky.social for speaking with me about the damage RFK Jr. has wrought in his first year at HHS. prismreports.org/2026/04/06/r...
prismreports.org
Under RFK Jr.’s leadership, ‘MAHA’ obliterates public health
Robert F. Kennedy Jr. has made massive cuts to public health and spread dangerous disinformation—all under the guise of “making America healthy again”
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Reposted by Jessica Malaty Rivera, MS
Public Health On Call Podcast @publichealthpod.bsky.social · 16/03/2026
Social media has evolved into an oversaturated and under-regulated marketplace for health disinformation. @jessicamalaty.bsky.social analyzes the online landscape and advises listeners on how to approach alarmist and misleading health content. 🎧 podcast.publichealth.jhu.edu/1023-how-soc...
Promo graphic for episode 1023 of Public Health On Call, titled How Social Media is Changing the Way We Talk About Health. Additional text reads: Once a useful tool for sharing critical information during the pandemic, social media has evolved into a marketplace for health disinformation.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 11/03/2026
Always a pleasure to talk to my pal @alletson.bsky.social at @revealnews.org
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 26/02/2026
It is 100% implausible that Casey Means was not familiar with flu vaccine effectiveness data. Her non-answer should terrify you.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
100% agree.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
Here's the thing about "shared clinical decision making"--MAHA's rebrand of informed consent. Most patients/parents do not know what that means. It is not empowering them in their decision-making; it's actually causing more confusion. And we have some data on this.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
Casey Means doesn't remember that in September 2024, she did in fact say, that the Hepatitis B vaccine at birth "is a crime"--screenshot below:
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
When asked if the flu vaccine reduces the risk of hospitalization and death, Casey Means brings up....INFORMED CONSENT. It's a yes or no question. And the evidence-based answer is YES. This alone should be disqualifying!
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
Casey Means once again failed to answer yes or no questions about the ethical issue of withholding a safe and effective vaccine from an INFANT population in a clinical trial. No IRB would ever approve this, because it is unethical. Casey doesn't seem to understand this.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
Worth the read during the break: www.salon.com/2026/01/07/t...
salon.com
"The only thing she practices is grift": Meet Trump's nominee for Surgeon General - Salon.com
Casey Means’ promotion of supplements and pseudoscience worry medical professionals
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
How unbelievably disrespectful to all providers, especially OBGYNs, to suggest they don't have thorough conversations about the risks of all medications, particularly birth control. What data is can she cite to say that "most of those conversations" don't have informed consent" ????
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
How many times is Casey Means going to answer questions with "root causes" and "whole foods"--even when it's off topic? The limit does not exist.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
Casey Means cannot answer the question of 'do vaccines cause autism'--instead she's offering word salads about cummulative exposures, science is not settled and the autism epidemic (autism is not disease).
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 25/02/2026
Come on Sen Cassidy--do the right thing today!
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 07/02/2026
Quick reminder that it’s NOT too late to get your flu shot. Influenza B cases are rising—which is typical around this time of respiratory virus season. Cases will likely continue to climb for a few more weeks.
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Reposted by Jessica Malaty Rivera, MS
Nora Loreto @nolore.bsky.social · 03/02/2026
Very inspiring day spent at the PERL launch. Canada's first Pandemic Readiness lab in a university, but hopefully not the last! montrealgazette.com/news/local-n...
montrealgazette.com
Another pandemic will inevitably hit Canada. This McGill lab wants it to be ready
The Pandemic and Emergency Readiness Lab was launched Tuesday, nearly six years after COVID-19 was declared a pandemic.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 20/01/2026
So looking forward to this!
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 10/01/2026
100000% agree
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Reposted by Jessica Malaty Rivera, MS
Angie Rasmussen @angierasmussen.bsky.social · 06/01/2026
Confused about why the US decided to make Denmark first about the childhood vaccine schedule? What is "shared clinical decision-making"? Why is a random sports medicine doc in charge of this? Me, @jessicamalaty.bsky.social, & @saskiapopescu.bsky.social get into it. www.youtube.com/watch?v=zBnV...
youtube.com
Make America Denmark Today! With Angie Rasmussen, Jessica Malaty Rivera, and Saskia Popescu
YouTube video by Angela Rasmussen
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Reposted by Jessica Malaty Rivera, MS
The Brian Lehrer Show @thebrianlehrershow.bsky.social · 06/01/2026
Yesterday, the CDC altered its childhood vaccine schedule recommendations. @jessicamalaty.bsky.social explained the changes and her concerns about how they'll affect public health. www.wnyc.org/story/change...
wnyc.org
Changes to the Childhood Vaccine Schedule | The Brian Lehrer Show | WNYC
Jessica Malaty Rivera explains new changes to the CDC's recommendations for the childhood vaccine schedule under RFK Jr.
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Reposted by Jessica Malaty Rivera, MS
Maggie Astor @maggieastor.bsky.social · 06/01/2026
Copy Editing Matters, from HHS's release on the new childhood vaccine schedule: All the diseases will still be available to anyone who wants them
Ensures that all the diseases covered by the previous immunization schedule will still be available to anyone who wants them through Affordable Care Act insurance plans and federal insurance programs, including Medicaid, the Children’s Health Insurance Program, and the Vaccines for Children program. Families will not have to purchase them out of pocket. Among peer nations, the U.S. will continue to offer the most childhood vaccines for free to those who want them.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 06/01/2026
Did you know that Denmark began recommending RSV vaccines for pregnant women in late 2025 and is now considering the monoclonal antibody shot for infants?
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Reposted by Jessica Malaty Rivera, MS
Onisillos @onisillos.bsky.social · 06/01/2026
I really enjoyed this conversation between @angierasmussen.bsky.social, @jessicamalaty.bsky.social, and @saskiapopescu.bsky.social. rasmussenretorts.substack.com/p/make-ameri...
rasmussenretorts.substack.com
Make America Denmark Today! With Angie Rasmussen, Jessica Malaty Rivera, and Saskia Popescu
Just three immunization-loving American scientists expressing professional concern and moral contempt for the European Country-ization of the US childhood vaccine schedule
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 06/01/2026
Children in the US do NOT get 72 injections. MAHA loves to use this fictitious number by calculating every dose (from combo vaccines like MMR and DTaP) as separate injections. That’s not how this works.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 06/01/2026
I’ve been rage posting on Instagram all day. Looking forward to a verbal vent with these two brilliant scientists. 🖤
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Reposted by Jessica Malaty Rivera, MS
Save America Movement @saveamericamvmt.bsky.social · 10/12/2025
Dr. Kristian Andersen, Jessica Malaty Rivera (@jessicamalaty.bsky.social), Dr. Anita Patel, Dr. Vincent Racaniello (@microbetv.bsky.social), Dr. Gavin Yamey, Prof. Dorit Rubinstein Reiss (@doritreiss.bsky.social), and Elizabeth Booker Houston (2/2)
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Reposted by Jessica Malaty Rivera, MS
Save America Movement @saveamericamvmt.bsky.social · 10/12/2025
The Save America Movement’s Science & Health Committee, led by Dr. Angela Rasmussen, unites experts from Johns Hopkins, Harvard, Yale & more to expose how Trump’s plan to rewrite the childhood vaccine schedule endangers families and public health. Watch here: www.youtube.com/shorts/4wnNy...
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Reposted by Jessica Malaty Rivera, MS
Save America Movement @saveamericamvmt.bsky.social · 10/12/2025
Hear from leading scientists and physicians, including Dr. Angela Rasmussen (@angierasmussen.bsky.social), Dr. Demetre Daskalakis, Dr. Gigi Gronvall (@ggronvall.bsky.social), Dr. Jeremy Faust, Dr. Taylor Nichols (@tnicholsmd.com), Dr. Gregg Gonsalves (@gregggonsalves.bsky.social) ... (1/2)
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 05/12/2025
Submitting a report on VAERS might be one of the easiest things to do/easiest ways to spread false claims. Siri is lying. Again.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 05/12/2025
Of course they visualize the schedule like this because it elicits a strong emotional reaction—especially among new parents. Let’s add some critical context to this image…
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 05/12/2025
Meissner and Hibbeln are right. This vote will cause harm. ACIP has become an embarrassment.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 05/12/2025
ACIP's discussion about "informed consent" today is dishonest. The HepB birth dose is not mandatory; it is recommended. Parents & caregivers have always had the right to refuse or delay. This edit is intended to confuse people about public health mandates and make MAHA out to be a freedom hero.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 05/12/2025
When we say "vaccines are a victim of their own success," this is exactly what we mean: ACIP is trying to justify altering the very vaccine recommendation that is the reason why we're not seeing much disease [Hep B]. The HBV vaccine is *that* successful, and safe, and effective.
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Reposted by Jessica Malaty Rivera, MS
Julia Raifman, ScD @juliaraifman.bsky.social · 23/11/2025
Did you know? 190 countries have infant immunization schedules that include the Hep B vaccine 115 countries recommend a universal birth-dose of the Hep B vaccine, one of the key actions WHO recommends to reduce Hep B prevalence Read more in the WHO Hep B Report ➡️ iris.who.int/server/api/c...
From the “first consolidated World Health Organization report on viral hepatitis epidemiology, service coverage and product access,”

“Globally, 115 countries have introduced universal hepatitis B birth-dose vaccination, and 45% of infants received the hepatitis B birth dose within the first 24 hours of birth in
2022. Twenty-three countries have selective programmes with targeted provision of the hepatitis B birth dose (the vaccine is provided to the infants of mothers who are HBsAg positive). Infant immunization schedules in 190 countries include the hepatitis B vaccine. Of the 38
WHO focus countries for the viral hepatitis response, 25 have introduced birth-dose programmes and all provide the hepatitis B vaccine (usually as part of pentavalent vaccines) in their infant vaccination programme. In theory, if these vaccines are included in the national programme, all children should have access; however, in practice, coverage varies widely across regions and countries (Table 3.23 and Fig. 3.32). Chapter 4 presents detailed information for the 38 WHO focus countries for viral hepatitis.”

https://www.who.int/publications/i/item/9789240091672
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 16/10/2025
Have absolutely loved watching @gparentsvaccines.bsky.social grow and grow and grow! www.forbes.com/sites/christ...
forbes.com
Why These Grandparents Are Speaking Out On Vaccines
Grandparents for Vaccines, who saw firsthand the transformative power of vaccination, are trying to help bridge the gap between generations.
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Reposted by Jessica Malaty Rivera, MS
IDSA @idsainfo.bsky.social · 19/09/2025
Secretary Kennedy presents a clear and present danger to the American people and their families. This week, even more of our colleagues in the fields of medicine, public health and patient advocacy join us in calling for his resignation. Our full statement: bit.ly/42zItEV
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 19/09/2025
Has everyone forgotten the endpoints of the original COVID-19 vaccine clinical trials? They were designed to prevent hospitalizations & deaths. Transmission reduction was observed, but total transmission prevention was never promised. This is a bad-faith argument against vaccine effectiveness.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 19/09/2025
We're back to 2020 explanations of basic biochemistry about how mRNA cannot change your DNA. 🫠
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 19/09/2025
Meissner pushing the dying "with COVID" vs "from COVID" and arguing with an actual epidemiologist about disease burden and cumulative rates is shameful. He just said it's "not that high" with regard to pediatric severe outcomes. Unbelievable ignorance about population health & basic statistics.
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Reposted by Jessica Malaty Rivera, MS
Elizabeth Jacobs, PhD @elizabethjacobs.bsky.social · 19/09/2025
It bugs me when people say that RFK Jr. and the members of ACIP aren’t “serious people”. They are DEADLY serious about taking vaccines away from the people of the United States, and they have the power to do so.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 18/09/2025
EtR (evidence to Recommendations) is gone. We're now forming vaccine policy based on vibes and public opinion. Mallone admits they are making a decision not based on a safety signal...but on trust? There is no reason to defer the Hep B birth dose except to advance the anti-vaccine agenda.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 18/09/2025
I *hate* the use of the phrase "true [saline] placebo." It is usually in combination with claims that comparing against saline is the only real/ethical way to measure safety & efficacy. It isn't. That phrase has captivated an entire population of parents who genuinely want to make informed choices
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Reposted by Jessica Malaty Rivera, MS
Elizabeth Jacobs, PhD @elizabethjacobs.bsky.social · 18/09/2025
Martin Kulldorff, whom RFK Jr. chose to lead ACIP in order to push through his anti-vaccine agenda, has demanded a debate with former CDC scientists. Kulldorff begins his demand with a lie: “The fact is that we are honest vaccine scientists…” Most of them are not “vaccine scientists” at all.
cnn.com
Head of RFK Jr.’s handpicked CDC vaccine advisory panel challenges former agency directors to debate | CNN
The recently installed chair of the committee that advises the US Centers for Disease Control and Prevention on vaccines opened a key meeting on Thursday by inviting several of the agency’s former dir...
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 18/09/2025
The opposite is true. @ameracadpeds.bsky.social will become even more valuable while this hijacked ACIP becomes irrelevant.
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Jessica Malaty Rivera, MS @jessicamalaty.bsky.social · 18/09/2025
Did Kulldorff really claim he was the most pro-vaccine scientist in the country? This revisionist history rant is absolutely deranged.
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Reposted by Jessica Malaty Rivera, MS
Saskia Popescu @saskiapopescu.bsky.social · 08/09/2025
Learning from my favorite expert on infodemiology & public health @jessicamalaty.bsky.social at the #19VaccineCongress - discussing risk and creating healthier information ecosystems
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