Fact Check: A Vaccinated Person Is NOT Wrong To Think An Unvaccinated Person Is A Threat To Their Health

Fact Check

  • by: Dean Miller
Fact Check: A Vaccinated Person Is NOT Wrong To Think An Unvaccinated Person Is A Threat To Their Health We Share Air

Is a vaccinated person wrong to believe an unvaccinated person is a threat to their health? No, that's not true: No vaccine is 100% effective, so the vaccinated person is still at risk of infection and, at the time the post appeared, unvaccinated people were most likely to carry the infection. During a pandemic, with airborne viruses circulating from person to person, a vaccinated person can still be infected. Vaccine makers, the Centers for Disease Control and Prevention (CDC), the Food and Drug Administration and medical professionals are unanimous in saying that vaccines are not 100% effective and that even vaccinated people should take precautions to avoid exposure to the SARS-CoV-2 virus since breakthrough infections have been documented.

The claim circulated in an anti-vaccine meme, including this version found in a June 17, 2021, Facebook post (archived here) under a "#Truth" caption. It opens:

IF YOU THINK

AN UNVACCINATED

PERSON IS A THREAT TO

A VACCINATED PERSON

THEN YOU DON'T

BELIEVE IN VACCINES

This is what the post looked like on Facebook at the time of writing:

Facebook screenshot

(Source: Facebook screenshot taken on Thu Jul 29 17:37:43 2021 UTC)

The meme recycles a common misperception: that vaccines are fake unless they kill all the virus a vaccinated person encounters.

Vaccines don't work that way, nor does your immune system, even when beefed up by a vaccine.

Early reports on a study of the effectiveness of the major U.S. vaccines indicates they are 82% effective against symptomatic COVID-19 after the first shot and 94% effective after the second dose.

YaleMedicine.org conducted a review of effectiveness, finding the Pfizer, Moderna and Janssen/J&J vaccines were all, in the field, performing about as well as the pre-approval clinical studies had predicted: powerful enough to slow the spread of the pandemic that had killed more than 600,000 Americans by the date this fact check was written. None of the vaccines are 100% effective and no knowledgeable medical professional has said they are.

So, while the vaccines greatly reduce the spread of the infection, there are still instances in which a vaccinated person has become ill with COVID-19. These are called "breakthrough" infections. The CDC is looking for patterns in patient characteristics (age, medical condition), the specific vaccine received and the specific SARS-CoV-2 variant that caused breakthrough patients' infections.

On a public information page about the small percentage of vaccine recipients who still contract an infection, the CDC says:

Vaccine breakthrough cases are expected. COVID-19 vaccines are effective and are a critical tool to bring the pandemic under control. However, no vaccines are 100% effective at preventing illness in vaccinated people. There will be a small percentage of fully vaccinated people who still get sick, are hospitalized, or die from COVID-19.

Pfizer, maker of one of the two main vaccines deployed in the U.S., recently announced a pre-peer-reviewed draft of a multinational study that reinforce its original field trials, showing high effectiveness in combating COVID-19, but also indicating effectiveness may decline after six months.

In the summer of 2021, when the meme circulated, U.S. public health agencies said the spread of COVID-19 was most rapid in communities with low vaccination rates, making this a pandemic of the unvaccinated.

Want to inform others about the accuracy of this story?

See who is sharing it (it might even be your friends...) and leave the link in the comments.:

Lead Stories is working with the CoronaVirusFacts/DatosCoronaVirus Alliance, a coalition of more than 100 fact-checkers who are fighting misinformation related to the COVID-19 pandemic. Learn more about the alliance here.


  Dean Miller

Lead Stories staff writer Dean Miller has edited daily and weekly newspapers, worked as a reporter for more than a decade and is co-author of two non-fiction books. After a one-year Harvard Nieman Fellowship, he served as Director of Stony Brook University’s Center for News Literacy for six years. As Senior Vice President/Content at Connecticut Public Broadcasting, a dual licensee, he oversaw radio, TV and print journalists, and documentary producers. He moved west to teach journalism at Western Washington University, edit The Port Townsend Leader and write the twice-weekly Save The Free Press column for the Seattle Times. Miller won the 2007 national Mirror Award for news industry coverage and he led the team that won the 2005 Scripps Howard first amendment prize. 

Read more about or contact Dean Miller

About us

International Fact-Checking Organization

Lead Stories is a fact checking website that is always looking for the latest false, deceptive or inaccurate stories (or media) making the rounds on the internet.
Spotted something? Let us know!.

Lead Stories is a:


Follow us on social media

Most Read

Most Recent

Share your opinion