What is a COVID-19 vaccine 'breakthrough' case?

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What is a COVID-19 vaccine 'breakthrough' case?
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When a fully vaccinated person gets infected with the coronavirus, this is considered a 'breakthrough' case. While a small number of such cases are expected, health officials say they're not a cause for alarm.

It's when a fully vaccinated person gets infected with the coronavirus. A small number of such cases are expected and health officials say they're not a cause for alarm.

If you do end up getting sick despite vaccination, experts say the shots are very good at reducing the severity of the illness - the main reason to get vaccinated. In the U.S., people who weren't vaccinated make up nearly all hospitalizations and deaths from COVID-19. People might also have been exposed to the virus before the shots took full effect. Though less likely, they may have received a dose that was improperly stored or administered, Moss said.

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