Original CNN headline, archived was:

Covid-19 vaccines no longer prevent transmission, CDC director says

CNN’s updated title and article:

Fully vaccinated people who get a breakthrough infection can transmit the virus, CDC director says

August 5, 2021

Fully vaccinated people who get a breakthrough infection can pass it on, US Centers for Disease Control and Prevention Director Dr. Rochelle Walensky said Thursday. 

“Our vaccines are working exceptionally well,” Walensky told CNN’s Wolf Blitzer in reference to fully vaccinated people who get breakthrough infections. “They continue to work well for Delta, with regard to severe illness and death – they prevent it. But what they can’t do anymore is prevent transmission.”

CDC provided data last week that showed how fully vaccinated people who get a breakthrough infection can carry essentially that same amount of virus as an unvaccinated person, allowing them to transmit the virus just like an unvaccinated person can.

That is why the CDC is recommending even vaccinated people wear masks indoors again, Walensky said.

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