The alerts on these pages are based on the monitoring of publicly available data. While some alerts reference false claims, others are included to indicate gaps in knowledge, concerns, speculation, and other trending narratives. Inclusion in reporting is based on reach and velocity of spread and on whether conversations may impact health behaviors and decisions.

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A social post repeats the long-disproven myth that the elimination of polio was not due to vaccines but to reduced…
A 25-year-old recent pharmacy school graduate who helped run vaccine clinics died of unknown causes late last year. Some vaccine…
The CDC investigated a potential link between the Pfizer bivalent COVID-19 booster and increased stroke risk in older adults. The…
A widely circulated video features several false claims about COVID-19 vaccines, including that people who are fully vaccinated and boosted…
Articles and social media posts are claiming that hundreds of athletes have collapsed or died after receiving COVID-19 vaccines. The…
After a football player went into cardiac arrest during a Monday night football game, social media users and several newsletter…
A website that publishes hoax news stories claimed that the government of Japan is investigating millions of deaths supposedly caused…
A study of COVID-19 vaccine safety in older adults has been widely circulated and misrepresented by vaccine opponents. The study…
Several popular social media accounts are promoting the idea that mask mandates and other COVID-19 protections are responsible for the…
Less than a week after a New Zealand baby whose parents attempted to refuse vaccinated blood received life-saving surgery, a…
A popular right-wing figure with millions of social media followers continued promotion of the debunked documentary that falsely claims COVID-19…
Several right-wing and anti-vaccine sites are promoting an international movement to open unvaccinated blood banks. Anti-vaccine conspiracists insist that blood…
Several trending social posts have attempted to link COVID-19 vaccines to the rise in respiratory syncytial virus (RSV) cases in…
An anti-mandate social media account posted the image of a billboard that is reportedly outside the CDC’s Atlanta headquarters. The…
A widely shared video features an OBGYN claiming that many newborns of mothers vaccinated for COVID-19 have vaccine-induced AIDS (VAIDS).…
An image posted on social media claims to show abnormal blood clots that have been removed from the bodies of…