Medical Testing

Tracking Coronavirus Cases at U.S. Colleges and Universities Coronavirus cases appear to be slowing at colleges, a New York Times survey has found. Hundreds of schools have announced vaccine requirements for students returning in the fall. The New York Times

More than 260,000 coronavirus cases have been linked to American colleges and universities since Jan. 1, and more than 700,000 cases have been reported since the beginning of the pandemic, according to a New York Times survey of cases on campus.

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No vaccine provides perfect protection, and so-called breakthrough infections after coronavirus vaccination are rare and unlikely to lead to serious illness. Federal health officials have told fully vaccinated people they no longer need to wear masks or maintain social distance because they are protected, nor do they need to be tested or quarantine after an exposure, unless they develop symptoms.

Now, the Centers for Disease Control and Prevention has stopped investigating breakthrough infections among fully vaccinated people unless they become so sick that they are hospitalized or die.