This is why home testing kits are so important. While you may be used to thinking of COVID tests as interchangeable, there’s a big difference between the standard at-home antigen test and a PCR ...

At home COVID-19 antigen tests should continue to detect different strains as long as they're used properly and not expired. To check your test expiration dates see here.

Therefore, the researchers directly compared the sensitivity of RATs and PCR tests in cases of COVID-19 infection known to be caused by the Omicron variant.

Experts say rapid home tests still work to detect the latest variants of the virus that causes Covid-19, but how and when home tests are used has changed.

A previous version of QuidelOrtho's rapid antigen coronavirus diagnostic was the first to receive the FDA's emergency use authorization in May 2020.

COVID-19 — it’s still a thing, which means it’s always a good idea to have one of the best at-home COVID test kits around. post wanted picks Best Overall: iHealth COVID-19 Antigen Rapid Test ...

For an antigen test, the median was $42 compared to $62 for PCR. For at-home rapid tests as of April 20 the average was about $11 per test.

A new COVID variant is spreading. Here's what you need to know about the incubation period, symptoms and when to take a test.