Jill Biden Tests Negative for Coronavirus
Jill Biden, the first lady, tested negative for the coronavirus on Thursday, the White House said, putting an apparent end to a minor health scare that had threatened to upend…
Do Expired Covid Tests Work? What to Know During the Surge
Can heat damage at-home tests? Extreme heat can mess with tests. According to the F.D.A., at-home tests work best when you use them in an environment that’s between roughly 59…