The best time to take an at-home COVID-19 test may be on the fourth day of having symptoms, according to a study published in the journal Clinical Infectious Diseases. Researchers looked at nearly 350 ...

Do you have a sore throat, a runny nose and muscle aches? It could be a common cold, a case of the flu -- or COVID-19. The illnesses all share similar symptoms, sometimes making it hard to distinguish ...

Every household in the U.S. can now order another round of free COVID tests kits through the website COVIDTests.gov. The tests are completely free and there is no shipping cost. The U.S. Department of ...

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 ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen ...

The timing of symptom onset depends on lots of factors, including the amount of virus to which someone was exposed, Hotez says. Their level of pre-existing immunity may also affect the likelihood or ...

The expiration date listed on the box might not be accurate. Here’s what to know. By Dani Blum As the government ships out another round of free Covid tests, some appear to have arrived already ...

You probably have a cabinet full of rapid COVID-19 tests you’ve accumulated. The expiration dates have come closer and closer, with some tests even reaching them. The Food and Drug Administration, ...