Shortened Covid Isolation Guidance Finds Support in Small Study

Most Covid-19 patients continue to test positive past the CDC’s five-day isolation guidelines, but only half of them are actually contagious, a small study out of Boston found.

The findings, which appear Wednesday in JAMA Network Open, come as the Centers for Disease Control and Prevention faces new criticism over its quarantine and isolation guidelines after President Joe Biden experienced a rebound case of Covid-19 and returned to isolation just days after casting his own mild case as evidence of the strides the US has made. Biden remained positive as of Tuesday, according to a letter from his physician, ...