Free at-home Covid tests can be ordered starting Monday. Here’s what you should know about when to test and what the results mean as new variants circulate.

At-home testing is becoming a thing not just for COVID-19, but for flu and other infections. Here's what you need to know.

The FDA granted marketing authorization to a Visby Medical at-home PCR test for three common sexually transmitted infections. The Visby test yields results in about 30 minutes.

Each household is eligible for four at-home COVID tests, though those who did not take advance of September's round can get up to eight.

Why do COVID-19 PCR and antigen tests produce different results? Earlier this year, the FDA urged people to test again after 48 hours if they get a negative result or seek out one of the more ...

While experts advise people who think they may have COVID-19 to test on day 1 of symptoms, a new study suggests that for people using home (rapid) kits, testing again on day 4 may yield the most ...