Biden’s top federal health officials made a forceful case today for the administration’s newly altered mask guidance — arguing both vaccinated and unvaccinated Americans were at imminent risk from the rapid spread of the Delta variant
Top infectious disease expert Anthony Fauci testifies before the Senate Health, Education, Labor and Pensions Committee. | J. Scott Applewhite-Pool/Getty ImagesPresident Joe Biden’s top federal health officials made a forceful case Wednesday for the administration’s newly altered mask guidance — arguing both vaccinated and unvaccinated Americans, as well as the nation’s children, were at imminent risk from the rapid spread of the coronavirus Delta variant.
The announcement marked a striking reversal for the nation’s premier public health agency after it previously declared in May that vaccinated Americans no longer needed to wear masks outdoors or indoors in most circumstances. But on Wednesday, Anthony Fauci insisted that “what has changed is the virus” — not the CDC.
"The data are clear,” Fauci continued, that when a person who has been vaccinated becomes infected with the Delta variant in a so-called breakthrough infection, “the level of virus in their nasopharynx is about 1,000 times higher” than infection via the Alpha variant.
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