Government health agencies disclosed a potential safety concern for strokes in those 65 and older with one of the COVID-19 vaccines, but the agencies haven’t found any causal relationship and the concern was flagged by just one of several monitoring systems. Anti-vaccine campaigners, however, have wrongly claimed the agencies have found a link between the boosters and strokes.
FactCheck.org’s SciCheck feature focuses exclusively on false and misleading scientific claims that are made by partisans to influence public policy. It was launched in January 2015 with a grant from the Stanton Foundation. The foundation was founded by the late Frank Stanton, president of CBS for 25 years, from 1946 to 1971.
Magic Johnson Did Not Contract HIV from a Vaccine, Contrary to Online Claim
COVID-19 Vaccines Tested in Clinical Trials, Despite Bogus Social Media Claims
No Surge in Athlete Deaths, Contrary to Widespread Anti-Vaccine Claims
Sports medicine experts say there has been no increase in sudden death or cardiac injury among U.S. athletes since the COVID-19 vaccines became available. Yet anti-vaccine campaigners, comparing unreliable numbers to an unrelated study, have again spread a false narrative about vaccine safety since NFL player Damar Hamlin suffered cardiac arrest.
NFL Player Damar Hamlin’s Cardiac Arrest Triggers Unfounded Social Media Claims
Buffalo Bills player Damar Hamlin collapsed on the field and suffered a cardiac arrest moments after taking a hit to his chest during a tackle. While it’s not yet known why his heart stopped, some experts say his condition is most likely due to a heart rhythm problem as a result of that impact. Still, people on social media have baselessly speculated that it was caused by a COVID-19 vaccine.
No Evidence Flu Vaccine Increases Strep A Infections, Contrary to Online Claims
Several European countries have reported an early spike of group A strep infections, mostly among children, including cases of rare but deadly bacterial infections. There is no evidence the increase is being caused by nasal spray flu vaccines, as social media posts baselessly suggest. Flu vaccination may even indirectly prevent strep A.
Social Media Posts Misrepresent FDA’s COVID-19 Vaccine Safety Research
A vaccine safety surveillance study from the Food and Drug Administration has been misrepresented online. The paper did not establish a link between the Pfizer/BioNTech COVID-19 vaccine and blood clots, as some have claimed — and to date, other, more robust research has not identified such associations.