This product comes with two rapid antigen tests that are simple to use. Prepare the testing materials, collect and process the sample, then receive your results in just 15 minutes. AMAZON $17.98 ...

In general, rapid antigen tests are less sensitive and therefore less likely to detect an infection compared with polymerase chain reaction (PCR) tests. PCR tests look for viral genetic material, ...

Experts discuss what it might mean if you get a faint line on a home COVID-19 test, when to take another test and what precautions to take.

RSV tests include nasal swabs or blood tests to detect the virus's genetic material or antibodies, but rapid tests provide quick results.

WORCESTER – Anyone who gets a negative result for COVID-19 from an at-home rapid antigen test shouldn't assume they're not infected, and should keep testing, according to a safety recommendation ...

To determine whether your COVID test is still usable, you can check the at-home COVID-19 tests listed on the FDA's website to see which brands have had their shelf lives extended.

Meanwhile, rapid antigen tests often stay positive for 5-14 days. But after 5-7 days, how contagious you are often drops by a huge amount -- possibly 10-1000 fold!

Rapid antigen tests remain an important COVID-19 mitigation tool, and it is essential to ensure that these tests can detect the SARS-CoV-2 virus as it continues to evolve.

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 discuss what it might mean if you get a faint line on a home COVID-19 test, when to take another test and what precautions to take.