What is a COVID-19 vaccine “breakthrough” case?

What is a COVID-19 vaccine “breakthrough” case?

This is when a fully vaccinated person becomes infected with the coronavirus.

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In studies, Pfizer and Moderna’s two-dose COVID-19 vaccines were about 95% effective in preventing disease, while Johnson & Johnson’s one-shot vaccine was 72% effective, although direct comparisons are difficult. So although vaccines are very effective in protecting us from the virus, it is still possible to get infected with mild or no symptoms, or even get very sick.

If you get sick despite the vaccination, experts say the injections help reduce the severity of the disease – the main reason for getting the vaccine.

CDC HAS NOT YET PUBLISHED THE DATA BEHIND THE MASK INVERSION

But the understanding of how vaccinated people who are infected might pass the virus on to others is changing.

Previously, health officials believed that vaccinated people who contract breakthrough infections were unlikely to spread the virus. But with the more contagious delta variant now dominant, the U.S. Centers for Disease Control and Prevention said new data shows that those infected could carry enough virus in their nose and throat to transmit it to d ‘others.

The agency recently cited the data in its updated guidance as saying that those vaccinated should resume wearing masks indoors in areas where the virus is on the rise.

“It is worrying enough that we feel like we need to act,” CDC director Dr Rochelle Walensky said.

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Still, health experts say vaccines offer strong protection against serious illness. In the United States, people who have not been vaccinated account for almost all hospitalizations and deaths from COVID-19.