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

DeSantis’ Dubious COVID-19 Vaccine Claims

DeSantis’ Dubious COVID-19 Vaccine Claims

While announcing a request for a grand jury probe into “crimes and wrongdoing” related to the COVID-19 vaccines, Florida Gov. Ron DeSantis and his panel of contrarian experts repeatedly suggested the shots were too risky. But such claims are unsupported and based on flawed analyses.

Widespread Claims Misrepresent Effectiveness of COVID-19 Vaccines

Widespread Claims Misrepresent Effectiveness of COVID-19 Vaccines

As the virus that causes COVID-19 has evolved, the vaccines have become less effective in preventing symptomatic infection while remaining highly effective in preventing severe disease and death. This shift has been misrepresented by anti-vaccine influencers who falsely claim that it means the vaccines don’t work and have been ineffective all along.

Vaccinated People Not More Susceptible to COVID-19 Than Unvaccinated

Vaccinated People Not More Susceptible to COVID-19 Than Unvaccinated

Q. Are vaccinated and boosted people more susceptible to infection or disease with the omicron variant than unvaccinated people?
A. No. Getting vaccinated increases your protection against COVID-19. Sometimes, certain raw data can suggest otherwise, but that information cannot be used to determine how well a vaccine works.

COVID-19 Vaccines Reduce Hospitalization and Death Rates, Contrary to Social Media Claims

COVID-19 Vaccines Reduce Hospitalization and Death Rates, Contrary to Social Media Claims

Those who are not vaccinated against COVID-19 are more prone to serious illness and are dying at higher rates than those who are vaccinated. But partisan social media accounts, including a post by a member of former President Donald Trump’s campaign legal team, continue to misleadingly suggest the vaccines are unnecessary and discourage their use.

Polio Vaccine Is a Four-Shot Series, Contrary to Greene Comments

Polio Vaccine Is a Four-Shot Series, Contrary to Greene Comments

The Centers for Disease Control and Prevention says it “recommends that children get four doses of polio vaccine.” But Rep. Marjorie Taylor Greene, when speaking against a potential fourth dose of the COVID-19 vaccines, wrongly suggested that the CDC doesn’t recommend four shots of the polio vaccine.

COVID-19 Vaccines Have Prevented Deaths, Contrary to Misleading Graphic on Social Media

COVID-19 Vaccines Have Prevented Deaths, Contrary to Misleading Graphic on Social Media

Studies have shown that COVID-19 vaccines have prevented severe disease and deaths. But bogus claims that they don’t work continue to circulate online. One claim relies on a misleading graph showing cumulative deaths in the U.S., but omits information about the number of deaths among the vaccinated versus unvaccinated since the shots became available.

Benefits of COVID-19 Vaccination Outweigh the Rare Risk of Myocarditis, Even in Young Males

Benefits of COVID-19 Vaccination Outweigh the Rare Risk of Myocarditis, Even in Young Males

Rare cases of myocarditis have been reported following the mRNA COVID-19 vaccines, particularly among young males after a second dose. Most cases resolve quickly without the need for advanced therapies, although research on any potential long-term effects is ongoing. Nonetheless, the benefits of vaccination outweigh the risks in all populations, even in young males.

U.S. COVID-19 Vaccines Follow Conventional Health Standards and Protocols

U.S. COVID-19 Vaccines Follow Conventional Health Standards and Protocols

Clinical and real-world studies have shown that the COVID-19 vaccines are effective in preventing serious disease, and there is a long history of vaccine requirements in the U.S. But a list of bogus claims, shared around the world in recent months, falsely attributes unique characteristics and requirements to COVID-19 vaccines.

COVID-19 Booster Enhances Protection, Contrary to ‘Immune Fatigue’ Claims

COVID-19 Booster Enhances Protection, Contrary to ‘Immune Fatigue’ Claims

A COVID-19 booster dose increases protection against the coronavirus. But in an interview, comedian Bill Maher incorrectly said COVID-19 booster shots were “useless” and could cause “immune system fatigue.” Online, others have made similar claims. There is no basis for the notion that the immune system would tire out, even after repeated boosters.