Study: Breakthrough COVID infections are rare

WNYT Staff
Updated: April 22, 2021 05:23 PM
Created: April 22, 2021 05:20 PM

More research suggests breakthrough infections after COVID vaccinations are rare.

The researchers at Rockefeller University looked at 417 fully vaccinated people. They all had received either the Pfizer or Moderna vaccines.

Two people, or 0.5%, ended up testing positive and developed symptoms at least two weeks after they received their second dose. Both women developed mild cases and recovered quickly.

"We're actually finding that people are not getting the virus at all. So what about those people who are breakthrough, who do get the virus? And increasingly, data suggests that about a third of them, even if they get the virus, are completely asymptomatic, and many of them have such low virus that they can't transmit to others," said CDC Director Dr. Rochelle Walensky.

The Centers for Disease Control announced last week it had received reports of roughly 5,800 breakthrough infections out of more than 76 million fully vaccinated people.

It is important to note that no vaccine is 100% effective.

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