Facebook Twitter Tumblr Close Skip to main content
A Project of The Annenberg Public Policy Center
SciCheck’s COVID-19/Vaccination Project

Texas Doctor Spreads False Claims About COVID-19 Vaccines

Texas Doctor Spreads False Claims About COVID-19 Vaccines

Federal officials authorized two mRNA vaccines for COVID-19 after they were determined to be safe and effective against symptomatic illness in clinical trials. But a Texas doctor, in a widely shared video, falsely claims the vaccines don’t provide protection and that they’re actually “experimental gene therapy.”

Instagram Post Misrepresents FDA Document About Monitoring Vaccine Safety

Instagram Post Misrepresents FDA Document About Monitoring Vaccine Safety

A Food and Drug Administration presentation on monitoring the safety of COVID-19 vaccines listed possible adverse events the agency might track. But an Instagram post misrepresents the document, falsely claiming it shows the vaccines are known to cause harmful side effects — including death.

Hagler’s Widow Refutes Rumors About How He Died

Hagler’s Widow Refutes Rumors About How He Died

Hall of Fame boxer Marvelous Marvin Hagler “died on March 13 of natural causes,” according to a statement posted on his official website. In a Facebook post, his widow, Kay Hagler, wrote that his death was not the result of a COVID-19 vaccination.

RFK Jr. Video Pushes Known Vaccine Misrepresentations

RFK Jr. Video Pushes Known Vaccine Misrepresentations

A video stoking fears of the COVID-19 vaccines in the Black community is being promoted online. But the film repeats misrepresentations about vaccines, generally, and exploits historical cases of unethical medical conduct to suggest without evidence that COVID-19 vaccines are unsafe.

Video Targets Gates With Old Clip, Misleading Edit

Video Targets Gates With Old Clip, Misleading Edit

In a 2010 TED Talk focused on developing new technologies to drastically reduce carbon dioxide emissions, Bill Gates briefly mentioned reducing the rate of population growth. A conspiratorial video circulating on Facebook misleadingly edits Gates’ talk to suggest his “wish” was to depopulate the planet through vaccines.

How do we know vaccines are safe?

No vaccine or medical product is 100% safe, but large randomized controlled trials, involving tens of thousands of people and reviewed by multiple groups of experts, revealed no serious safety concerns and showed that the benefits outweigh the risks. 
As with any vaccine, safety is also being monitored as the shots are rolled out to members of the public to ensure there are no side effects of concern. A very small number of severe allergic reactions,

How safe are the vaccines?

No serious safety concerns were found in the clinical trials of the vaccines that have been authorized for use in the United States. 
On April 13, the CDC and Food and Drug Administration recommended “a pause in the use” of the Johnson & Johnson vaccine. The agencies lifted the pause on April 23, shortly after the CDC’s Advisory Committee on Immunization Practices voted 10-4 to resume the vaccine’s use with a warning about a rare,

No Evidence Vaccines Impact Fertility

No Evidence Vaccines Impact Fertility

Q: Do the COVID-19 vaccines cause infertility?
A: There’s no evidence that approved vaccines cause fertility loss. Although clinical trials did not study the issue, loss of fertility has not been reported among thousands of trial participants nor confirmed as an adverse event among millions who have been vaccinated. 

How were safe and effective vaccines developed so rapidly?

The unprecedented speed of the COVID-19 vaccines was due to multiple factors.
Candidates for an mRNA vaccine — the technology used for the Pfizer/BioNTech and Moderna vaccines — can be quickly designed once scientists know the genetic sequence of the virus and which protein to target. Researchers already knew from past experience with SARS and MERS, which are other diseases caused by coronaviruses, that the spike protein the virus uses to enter cells was likely the right one.