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.
The Vaccine Adverse Event Reporting System accepts any reports of adverse side effects following vaccination to help regulators detect potential problems. Anyone can submit a report, whether or not the incident is vaccine-related. Fox News host Tucker Carlson misrepresented the VAERS data to suggest that thousands have died from COVID-19 vaccines.
So far, COVID-19 vaccines have been effective against variants of the coronavirus. Scientists are monitoring the situation carefully, with updated or new vaccines a possibility in the future, if need be.
Japan only recently adopted guidelines for accepting blood donations from those who have received COVID-19 vaccines. The guidelines are intended to give donors time to get over any side effects from the vaccine. Without providing that context, a social media post misleadingly claims Japan is “refusing” blood donations from vaccinated people.
COVID-19 vaccines do not contain a live virus, so there isn’t a biological path for a vaccinated person to “shed” the SARS-CoV-2 spike protein to those around them. Nor is there any evidence the vaccines cause reproductive problems. That means there’s no basis for social media claims that “shedding” causes reproductive issues in unvaccinated people.
Q: Can employers, colleges and universities require COVID-19 vaccinations?
A: Generally, they may require immunizations. But there is some uncertainty about the legality of mandating vaccines authorized for emergency use by the U.S. Food and Drug Administration.
A tweet that migrated across social media platforms falsely suggests that any deaths in the 20 days following positive COVID-19 tests are to be attributed to the disease, “no matter what other factors were involved.” There is no such policy. And there’s also no evidence for the post’s suggestion that the vaccines are causing deaths that are being ignored.
COVID-19 was the third-leading cause of death in the U.S. in 2020. But a meme featuring Florida Gov. Ron DeSantis minimizes the toll the pandemic already has taken — particularly among the elderly. The meme also questions getting inoculated, despite the safety record of the vaccines and DeSantis’ public support for vaccines.
There is no evidence that vaccines could cause harm to people who already have been infected with SARS-CoV-2 or have become ill with the disease COVID-19. On the contrary, recent studies show the vaccine gives an important immunity boost to those previously infected and suggest that one dose might be enough.
Stanford Medicine says it “strongly supports the use of face masks to control the spread of COVID-19.” Yet viral stories falsely claim a “Stanford study” showed that face masks are unsafe and ineffective against COVID-19. The paper is a hypothesis, not a study, from someone with no current affiliation with Stanford. Update: The paper was retracted.
We look at what is known about the rare clotting conditions associated with the Johnson & Johnson vaccine, their frequency and the risks of COVID-19.