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

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.

Studies Show Boosted Immunity Against Omicron with Booster Doses

Studies Show Boosted Immunity Against Omicron with Booster Doses

Neither primary vaccination nor natural immunity is generally stopping infections with the omicron variant, but research shows booster doses substantially increase protection. Yet, Republican Sen. Rand Paul claimed that a case of COVID-19 provides “an immunity better than the vaccine.”

Already Had COVID-19? Vaccines Boost Immunity, Not ‘Wipe Out’ Antibodies

Already Had COVID-19? Vaccines Boost Immunity, Not ‘Wipe Out’ Antibodies

Studies show the COVID-19 vaccines boost the antibody levels and improve the immune response of those who previously had COVID-19. The vaccines do not “wipe out” the antibodies developed by a person who had recovered from the disease, as social media posts have falsely claimed for months.

Basketball Star Bradley Beal’s Misleading Comments About COVID-19

Basketball Star Bradley Beal’s Misleading Comments About COVID-19

NBA star Bradley Beal made some misleading comments — shared in viral video clips — about the effectiveness of COVID-19 vaccines. No vaccine is 100% effective, but clinical trials and studies show the COVID-19 vaccines are very effective at preventing illness, particularly serious illness, including for those previously infected, such as Beal.

Instagram Post Missing Context About Israeli Study on COVID-19 Natural Immunity

Instagram Post Missing Context About Israeli Study on COVID-19 Natural Immunity

An Instagram post highlighted a headline about a non-peer-reviewed study from Israel that found that unvaccinated people previously infected with SARS-CoV-2 had greater immunity against the delta variant than never-infected people fully vaccinated with Pfizer/BioNTech’s COVID-19 vaccine. But the social media post omitted the study’s other finding that one dose of the vaccine enhanced protection for infection survivors.

COVID-19 Surges Among Unvaccinated in Florida, Contrary to Baseless Claims

COVID-19 Surges Among Unvaccinated in Florida, Contrary to Baseless Claims

Florida health officials have reported a 60% rise in COVID-19 cases, and hospitals are reporting that 95% of COVID-19 patients are not fully vaccinated. But a Facebook post makes the baseless claims that Florida’s numbers are not going up, and that all COVID-19 patients recently admitted to a Palm Beach County hospital had been vaccinated.

So Far, Vaccines Remain Effective Against Variants

So Far, Vaccines Remain Effective Against Variants

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.

How does community immunity apply to COVID-19?

Community immunity, often referred to as herd immunity, refers to a situation in which enough of a population is immune to an infectious disease, either through vaccination or prior infection, to largely stop transmission of the disease and indirectly protect those who aren’t immune. The more contagious the disease, the higher proportion of people need to have immunity to get community immunity.
This classical definition applies to diseases such as measles,

A Guide to Moderna’s COVID-19 Vaccine

A Guide to Moderna’s COVID-19 Vaccine

Moderna’s mRNA vaccine is the second COVID-19 vaccine to be authorized and fully approved for use in the U.S. Here, we give a rundown of basic facts about the vaccine and an overview of how it works.