COVID-19 antigen home tests show a positive result. Americans will be able to order four free COVID-19 tests at the end of September that will be (Patrick Sison | AP) The Biden administration is ...

At-home COVID-19 tests have become commonplace for many households, but knowing when exactly to take a rapid test — or when to throw old ones out — isn't always straightforward. Here's what health ...

Pfizer-BioNTech has begun testing a third dose of its COVID-19 vaccine in a small group of people. The vaccine is currently authorized in several countries in a two-dose regimen, given 21 days apart, ...

The Biden administration is bringing back free at-home COVID-19 tests by mail. At the end of September, each household will be able to order up to four rapid tests through COVIDtests.gov. The tests, ...