Two types of COVID-19 tests, the rapid antigen test and the polymerase chain reaction (PCR) test, are available in the United States. The PCR typically relies on lab testing and is still considered ...

Researchers have shown that commercially available rapid antigen tests can detect past and present variants of concern and have identified potential mutations that may impact test performance in the ...

A COVID-19 rapid test that is said to be more sensitive than any other has been developed by scientists in the United Kingdom. It detects temperature changes when the virus binds to nanoparticles ...

With the semester just beginning and over 100 positive COVID-19 test results on campus, University health experts agree rapid antigen tests are a pivotal tool for students to keep both themselves and ...

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 ...

SYDNEY, AUSTRALIA - SEPTEMBER 29: In this photo illustration a man uses a COVID-19 rapid antigen test kit at home on September 29, 2021 in Sydney, Australia. Australians will be able to use rapid ...

In the age of omicron, where COVID’s attack rate is higher than previous variants, entire households and friend groups are getting sick. If one person gets COVID, there’s a good chance others in their ...

The warning is for the “Flowflex SARS-CoV-2 Antigen Rapid Test (Self-Testing)” from ACON Laboratories. The test comes in a dark blue box with white lettering and symbols in the lower right corner of ...

For instance, if you only get a very faint line, it might be hard to know whether or not that means your results are positive. I know how that feels firsthand. After more than two years of evading ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen test, it may not detect COVID after nine days, but it is more accurate for ...

It was possible -- albeit rare -- for people not infected with SARS-CoV-2 to have persistent false positive rapid antigen COVID-19 tests, longitudinal data showed. Among a large cohort of over 11,000 ...

Last month, President Biden launched a website where Americans could order four free COVID-19 rapid tests to be shipped to their home. If you are unable to get the free rapid antigen tests, there are ...