Taking a COVID-19 test at home seems simple enough: If you get a line, you're positive for the coronavirus. But what if your results aren't so obvious? For instance, if you only get a very faint line ...

The Food and Drug Administration is making it easier for people to simultaneously test themselves for COVID-19 and the flu at home. The agency this week authorized the Healgen Scientific's Rapid Check ...

A federal program that provides free COVID tests has restarted. Any household can order up to four at-home COVID tests through covidtests.gov. The rapid antigen tests use nasal swabs to detect the ...

A fever and a nasty cough can be symptoms of a range of respiratory illnesses. An antigen test that narrows down the culprits can speed up diagnosis and recovery. When you purchase through links on ...