Jessica Malaty Rivera, MS
@jessicamalaty.bsky.social
Infectious Disease Epidemiologist & Science Communicator
Tracking Pandemics & Infodemics @bsph-chs
DrPH student @JohnsHopkinsSPH
Prev COVID Tracking Project #SciComm Lead & Podcast Host
#MakingScienceMakeSense on @instagram
Tracking Pandemics & Infodemics @bsph-chs
DrPH student @JohnsHopkinsSPH
Prev COVID Tracking Project #SciComm Lead & Podcast Host
#MakingScienceMakeSense on @instagram
Have absolutely loved watching @gparentsvaccines.bsky.social grow and grow and grow! www.forbes.com/sites/christ...
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.
www.forbes.com
October 16, 2025 at 2:33 AM
Have absolutely loved watching @gparentsvaccines.bsky.social grow and grow and grow! www.forbes.com/sites/christ...
Reposted by Jessica Malaty Rivera, MS
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: https://bit.ly/42zItEV
Our full statement: https://bit.ly/42zItEV
September 19, 2025 at 9:50 PM
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: https://bit.ly/42zItEV
Our full statement: https://bit.ly/42zItEV
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.
This is a bad-faith argument against vaccine effectiveness.
September 19, 2025 at 4:30 PM
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.
This is a bad-faith argument against vaccine effectiveness.
We're back to 2020 explanations of basic biochemistry about how mRNA cannot change your DNA. 🫠
September 19, 2025 at 4:00 PM
We're back to 2020 explanations of basic biochemistry about how mRNA cannot change your DNA. 🫠
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.
He just said it's "not that high" with regard to pediatric severe outcomes.
Unbelievable ignorance about population health & basic statistics.
September 19, 2025 at 3:43 PM
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.
He just said it's "not that high" with regard to pediatric severe outcomes.
Unbelievable ignorance about population health & basic statistics.
Reposted by Jessica Malaty Rivera, MS
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.
They are DEADLY serious about taking vaccines away from the people of the United States, and they have the power to do so.
September 19, 2025 at 2:06 PM
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.
They are DEADLY serious about taking vaccines away from the people of the United States, and they have the power to do so.
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.
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.
September 18, 2025 at 9:22 PM
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.
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.
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
September 18, 2025 at 3:45 PM
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
Reposted by Jessica Malaty Rivera, MS
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.
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.
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...
www.cnn.com
September 18, 2025 at 3:06 PM
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.
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.
The opposite is true. @ameracadpeds.bsky.social will become even more valuable while this hijacked ACIP becomes irrelevant.
September 18, 2025 at 3:04 PM
The opposite is true. @ameracadpeds.bsky.social will become even more valuable while this hijacked ACIP becomes irrelevant.
Did Kulldorff really claim he was the most pro-vaccine scientist in the country? This revisionist history rant is absolutely deranged.
September 18, 2025 at 2:33 PM
Did Kulldorff really claim he was the most pro-vaccine scientist in the country? This revisionist history rant is absolutely deranged.
Reposted by Jessica Malaty Rivera, MS
Learning from my favorite expert on infodemiology & public health @jessicamalaty.bsky.social at the #19VaccineCongress - discussing risk and creating healthier information ecosystems
September 8, 2025 at 7:57 AM
Learning from my favorite expert on infodemiology & public health @jessicamalaty.bsky.social at the #19VaccineCongress - discussing risk and creating healthier information ecosystems
There it is...the first hint of his autism findings due later this month. He is once again connecting the MMR vaccine with the onset of autism in children. #FireRFK
September 4, 2025 at 3:40 PM
There it is...the first hint of his autism findings due later this month. He is once again connecting the MMR vaccine with the onset of autism in children. #FireRFK
Cortez Masto is absolutely right! He DID unilaterally make the decision to restrict access to COVID-19 vaccines. It was not evidence-based, and his move to fire the CDC Director last week was the last step he needed to ensure his plan was not derailed. #FireRFK
September 4, 2025 at 3:26 PM
Cortez Masto is absolutely right! He DID unilaterally make the decision to restrict access to COVID-19 vaccines. It was not evidence-based, and his move to fire the CDC Director last week was the last step he needed to ensure his plan was not derailed. #FireRFK
Absolutely brain-breaking to hear RFK Jr. claim he doesn't know how many lives were saved by COVID-19 vaccines because of wait for it...."data chaos." #FireRFK
September 4, 2025 at 3:22 PM
Absolutely brain-breaking to hear RFK Jr. claim he doesn't know how many lives were saved by COVID-19 vaccines because of wait for it...."data chaos." #FireRFK
Reposted by Jessica Malaty Rivera, MS
BENNET: Are you aware that one of the people you put on the panel -- Dr Robert Malone -- claimed that the commonly used mRNA vaccine causes 'a form of AIDS'? Yes or no
RFK Jr: Dr Malone is one of the invento--
BENNET: Yes or no!
RFK Jr: Dr Malone is one of the inventors of the mRNA vaccine
RFK Jr: Dr Malone is one of the invento--
BENNET: Yes or no!
RFK Jr: Dr Malone is one of the inventors of the mRNA vaccine
September 4, 2025 at 3:12 PM
BENNET: Are you aware that one of the people you put on the panel -- Dr Robert Malone -- claimed that the commonly used mRNA vaccine causes 'a form of AIDS'? Yes or no
RFK Jr: Dr Malone is one of the invento--
BENNET: Yes or no!
RFK Jr: Dr Malone is one of the inventors of the mRNA vaccine
RFK Jr: Dr Malone is one of the invento--
BENNET: Yes or no!
RFK Jr: Dr Malone is one of the inventors of the mRNA vaccine
Reposted by Jessica Malaty Rivera, MS
After RFK Jr. says he doesn’t know how many people died from Covid and doesn’t know how many lives were saved from the Covid vaccine because the CDC data was too bad, Sen. Mark Warner: “How can you be that ignorant?”
September 4, 2025 at 3:13 PM
After RFK Jr. says he doesn’t know how many people died from Covid and doesn’t know how many lives were saved from the Covid vaccine because the CDC data was too bad, Sen. Mark Warner: “How can you be that ignorant?”
Reposted by Jessica Malaty Rivera, MS
August 30, 2025 at 7:09 PM
I just wrote a @theactionnet letter: Write members of Congress - Will COVID-19 vaccines be available this fall?. Write one here:
actionnetwork.org/letters/writ...
actionnetwork.org/letters/writ...
Write members of Congress - Will COVID-19 vaccines be available this fall?
It is clear that HHS Secretary RFK Jr. is on a dangerous and fast-moving path to make COVID-19 vaccines totally unavailable here in the U.S. With COVID-19 cases on the rise in many parts of the US an...
actionnetwork.org
August 30, 2025 at 4:47 PM
I just wrote a @theactionnet letter: Write members of Congress - Will COVID-19 vaccines be available this fall?. Write one here:
actionnetwork.org/letters/writ...
actionnetwork.org/letters/writ...
500 shots. This could have been a massacre. The shooter wanted a massacre.
It's time for RFK Jr. to resign. He has incited this violence for years with his anti-science, anti-vaccine, anti-public health rhetoric.
abcnews.go.com/US/suspected...
It's time for RFK Jr. to resign. He has incited this violence for years with his anti-science, anti-vaccine, anti-public health rhetoric.
abcnews.go.com/US/suspected...
Nearly 500 rounds recovered from CDC campus after gunman attack: Officials
The suspected gunman who attacked the Centers for Disease Control and Prevention's campus on Friday may have fired many hundred rounds, law enforcement said on Tuesday.
abcnews.go.com
August 13, 2025 at 12:29 AM
500 shots. This could have been a massacre. The shooter wanted a massacre.
It's time for RFK Jr. to resign. He has incited this violence for years with his anti-science, anti-vaccine, anti-public health rhetoric.
abcnews.go.com/US/suspected...
It's time for RFK Jr. to resign. He has incited this violence for years with his anti-science, anti-vaccine, anti-public health rhetoric.
abcnews.go.com/US/suspected...
Reposted by Jessica Malaty Rivera, MS
Robert Malone once again brought up potential religious objections to certain vaccines.
This is, frankly, bullshit. No major religion opposes vaccines, and in fact they have all been public about strong support for them.
This is, frankly, bullshit. No major religion opposes vaccines, and in fact they have all been public about strong support for them.
June 26, 2025 at 1:54 PM
Robert Malone once again brought up potential religious objections to certain vaccines.
This is, frankly, bullshit. No major religion opposes vaccines, and in fact they have all been public about strong support for them.
This is, frankly, bullshit. No major religion opposes vaccines, and in fact they have all been public about strong support for them.
Reposted by Jessica Malaty Rivera, MS
This week's ACIP meeting was full of the same intentionally misleading fearmongering that causes vaccine hesitancy. Children and families deserve better — public health information grounded in science.
June 26, 2025 at 5:50 PM
This week's ACIP meeting was full of the same intentionally misleading fearmongering that causes vaccine hesitancy. Children and families deserve better — public health information grounded in science.
What you just witnessed at ACIP is policy-based evidence making NOT evidence-based policy-making.
See the difference?
The former is about confirming a previously held bias (this time about thimerosal) by misrepresenting data to make it fit an ideology.
This is a dangerous precedent.
See the difference?
The former is about confirming a previously held bias (this time about thimerosal) by misrepresenting data to make it fit an ideology.
This is a dangerous precedent.
June 26, 2025 at 4:49 PM
What you just witnessed at ACIP is policy-based evidence making NOT evidence-based policy-making.
See the difference?
The former is about confirming a previously held bias (this time about thimerosal) by misrepresenting data to make it fit an ideology.
This is a dangerous precedent.
See the difference?
The former is about confirming a previously held bias (this time about thimerosal) by misrepresenting data to make it fit an ideology.
This is a dangerous precedent.
Thimerosal is safe and does not cause harm.
Do not fall for the "hope for other, better preservatives" to reinstate multi-dose vials of influenza vaccine. This is a sham.
Do not fall for the "hope for other, better preservatives" to reinstate multi-dose vials of influenza vaccine. This is a sham.
June 26, 2025 at 4:43 PM
Thimerosal is safe and does not cause harm.
Do not fall for the "hope for other, better preservatives" to reinstate multi-dose vials of influenza vaccine. This is a sham.
Do not fall for the "hope for other, better preservatives" to reinstate multi-dose vials of influenza vaccine. This is a sham.
What. Is. Happening.
ACIP doesn't issue mandates.
ACIP doesn't issue mandates.
June 26, 2025 at 3:59 PM
What. Is. Happening.
ACIP doesn't issue mandates.
ACIP doesn't issue mandates.