COVID and flu tests aren't designed to tell you how sick you are, but if you use them to monitor your infection, they can provide useful information.

At-home rapid COVID-19 tests can reveal more about viral load than a simple positive/negative result, according to experts. "By definition, the basic technology suggests that you somehow have to go ...

You have a fever. You're in respiratory distress. And you might even be hospitalized with pneumonia. Doctors worry you may have been infected with the novel coronavirus. What happens next? Ideally, ...

In the thick of flu season and with COVID still around, keeping this 3-in-1 test at the ready is a must — especially at 28% ...

It seems everyone has a “summer cold” these days. If you have hallmark COVID symptoms—headache, runny nose, sore throat, sneezing, cough—but your at–home test says you’re negative, what do you believe ...

The FDA has issued emergency authorizations to 12 antibody tests for the virus. As federal officials gradually begin reopening the country, expanded testing is central to the conversation. Until now, ...

A Covid-19 antigen self-test kit shows a positive case on January 13, 2022 in Madrid. - Spain today agreed to cap the cost of Covid antigen tests at just under three euros after the government came ...

Testing positive for COVID-19 is not exactly a positive experience. After all, wanting to go viral these days doesn’t tend to mean wanting to be infected by the severe acute respiratory syndrome ...