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.

You can exhibit COVID-19 symptoms yet test negative due to early infection, low viral load, or immune response. PCR testing ...

Regardless of how you much of a health risk you see in COVID, it is still, at best, an inconvenience that costs you days off work. A simple ... we viewed COVID testing as something you do for your own ...

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.