For instance, if you only get a very faint line, it might be hard to know whether or not that means your results are positive. I know how that feels firsthand. After more than two years of evading ...

WASHINGTON — One of the quickest ways to know if you have COVID is the rapid tests. If you are positive, a line appears on the test kit. However, you may have noticed that line can be bold or faint.

As flu cases rise across the country, here is everything to know about testing yourself for the illness at home.

A 2022 study estimates that at-home flu tests have a sensitivity of about 61% if the test is performed within 72 hours of ...

What does it mean if a person's rapid antigen test result comes back positive after five days of isolation due to COVID-19? According to the experts, that person is most likely still carrying a viral ...

Last month I had strep throat–level pain while living with two people who were confirmed COVID positive. Yet, several rapid tests kept telling me I was COVID-free. It’s a confusing experience shared ...

To quickly confirm an asymptomatic case of COVID-19, a second rapid test within an hour of a positive result can boost the accuracy of the result from 38 percent to 92 percent, according to a new ...

Free COVID-19 test kits are available to American households via the United States Postal Service. People can expect to see different testing brands arrive in their mail. The Biden administration ...

Some 50% of people who test positive for Covid-19 on a rapid test after five days of infection are likely no longer contagious, a Journal of the American Medical Association study released on ...

Many people, regardless of vaccination status, are going to become sick with coronavirus over the next couple of weeks. Because many of the recommendations from the U.S. Centers for Disease Control ...

Ahead of Christmas, health experts suggested undergoing a rapid coronavirus test just before any gatherings. But some health experts are now warning that you can test negative even if you’re infected ...