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Mario Tama / Getty Images Originally published on July 21, 2021 5:02 pm There have been a number of recent reports of fully vaccinated people testing positive for the coronavirus at the White House, Congress, the Olympics and Major League Baseball. And with the fast-spreading delta variant driving up infections, hospitalizations and deaths, a lot of people are wondering whether the vaccines are as protective as we thought. But the current crop of vaccine breakthrough cases doesn t surprise or alarm public health experts. I haven t seen any signals in the U.S. indicating that they are occurring at the levels that would give us concern that the [vaccine] effectiveness is going down, said Saad Omer, director of the Yale Institute for Global Health.

United statesWhite houseDistrict of columbiaCapitol hillSan franciscoSaad omerAnthony fauciKathleen neuzilMonica gandhiEmily martinJohn moorePaul offitRochelle walenskyAngela rasmussenCenters for diseaseUniversity of california