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A Project of The Annenberg Public Policy Center
SciCheck’s COVID-19/Vaccination Project

Yale Preprint Recorded Patient Experiences, Did Not Demonstrate Vaccines Cause New Syndrome

Yale Preprint Recorded Patient Experiences, Did Not Demonstrate Vaccines Cause New Syndrome

A preprint on a Yale-based study described chronic symptoms self-reported after COVID-19 vaccination by 241 members of an online group. The paper, which has not been peer-reviewed, did not show how common these symptoms are in the general population, nor whether vaccinations caused them — limitations popular online posts did not make clear.

Posts Spread False Claim About Moderna Patent Application

Posts Spread False Claim About Moderna Patent Application

The mRNA COVID-19 vaccines — like many other vaccines — can contain small amounts of DNA left over from the manufacturing process. There’s no evidence this residual DNA causes “turbo cancer,” or very aggressive cancer. Nor did Moderna admit that “mRNA Jabs Cause Turbo-Cancer,” contrary to an online article that misconstrues a line from a patent application.

COVID-19 Vaccination During Pregnancy Is Safe, Has Multiple Benefits

COVID-19 Vaccination During Pregnancy Is Safe, Has Multiple Benefits

Being vaccinated against COVID-19 helps protect pregnant people from severe COVID-19. When given during pregnancy, the vaccines can also reduce the risk of hospitalization from COVID-19 early in a baby’s life. A new study adds to the evidence that vaccination during pregnancy is safe for babies, contrary to social media and online claims.

COVID-19 Vaccines Save Lives, Are Not More Lethal Than COVID-19

COVID-19 Vaccines Save Lives, Are Not More Lethal Than COVID-19

COVID-19 vaccination reduces the risk of death from COVID-19. Social media posts have misused survey data and adverse events reports to falsely claim that COVID-19 vaccines have killed more people than COVID-19. But serious adverse events resulting from vaccination, including deaths, are rare.

COVID-19 Vaccines Have Not Been Shown to Alter DNA, Cause Cancer

COVID-19 Vaccines Have Not Been Shown to Alter DNA, Cause Cancer

Small amounts of DNA from the manufacturing process may remain in the mRNA COVID-19 vaccines. Purification and quality control steps ensure any leftover DNA is present within regulatory limits. There isn’t reason to think that this residual DNA would alter a person’s DNA or cause cancer, contrary to claims made online.

Posts Push Unproven ‘Spike Protein Detoxification’ Regimen

Posts Push Unproven ‘Spike Protein Detoxification’ Regimen

Serious side effects after COVID-19 vaccination are rare, and there isn’t evidence people need to undergo a “spike protein detoxification” regimen after getting vaccinated, contrary to claims made online. Nor has such a regimen been shown to help people recover from long COVID, or long-term health problems after having COVID-19.

Video Falsely Claims 850 People Died of Myocarditis in Mexico

Video Falsely Claims 850 People Died of Myocarditis in Mexico

Cases of myocarditis have been reported following mRNA COVID-19 vaccination, but they are rare and usually mild. Yet, a viral video distorts news reports to falsely claim 850 people died in Monterrey, Mexico, in June due to myocarditis. The figure comes from a false report of heat-related deaths.