Rapid COVID tests are convenient and easy to use because you can take them at home. But it's important to know how to interpret their results, when you should take another rapid test and when you ...

What does it mean if a person's rapid antigen test result comes back positive after five days of isolation due to COVID-19? According to the experts, that person is most likely still carrying a viral ...

Rapid at-home Covid-19 tests are flying off store shelves across the country and are largely sold out online as the delta variant of the coronavirus complicates a return to school, work and travel ...