Vaccinated People Should Be Tested After Exposure Even Without Symptoms, C.D.C. Says


In addition to revising its mask guidance on Tuesday, the Centers for Disease Control and Prevention also quietly updated its testing recommendations for people who are fully vaccinated against the coronavirus.

The agency now advises that vaccinated people be tested for the virus if they come into contact with someone with Covid-19, even if they have no symptoms. Previously, the health agency had said that fully vaccinated people did not need to be tested after exposure to the virus unless they were experiencing symptoms.

“Our updated guidance recommends vaccinated people get tested upon exposure regardless of symptoms,” Dr. Rochelle P. Walensky, the agency’s director, said in an email to The New York Times. “Testing is widely available.”

Fully vaccinated people should wear a mask in public indoor spaces after exposure, the agency said. Three to five days later, they should be tested for the virus.

The change was prompted by new data suggesting that even vaccinated people who are infected by Delta may carry large amounts of the virus and transmit it to others, Dr. Walensky said at a news briefing on Tuesday.

Apoorva Mandavilli contributed reporting.



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