As the nation experiences what many experts believe is the second-largest wave of COVID infections since the pandemic started, many Americans will be checking to make sure they don’t have the ...

For most people, having an at-home COVID test or two handy is just a normal part of life these days. But, if you happen to take a test and get a positive you weren’t expecting, it’s more than ...

At-home coronavirus screening has become a way of life for many Californians, but some medical experts are now cautioning that one test may not be enough to definitively determine whether someone is ...

In early May, 27-year-old Hayley Furmaniuk felt tired and a bit congested, but after rapid-testing negative for the coronavirus two days in a row, she dined indoors with friends. The next morning, her ...

Rampant community transmission of the coronavirus and a crippled vaccine rollout have boxed people into a corner: Many are relying on negative test results, inherently limited in usefulness, as a ...

For travelers, a recent negative Covid-19 test can be a golden admission ticket to many U.S. and international destinations without having to quarantine for two weeks. But how easy is it to fake a ...