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.

If your COVID-19 rapid test turns positive, but the line is faint, unfortunately, it still means you have COVID-19. However, a re-test might be in your future.

Medically reviewed by Kate Colby, MPH How long you will test positive for COVID-19 after recovery depends on several factors. People with asymptomatic or mild illness generally test negative after ...