Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. By now, most of us know the basics of taking a COVID-19 test at home. With cases, test positivity and hospitalizations due to ...

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 ...

Adding a throat swab specimen to a nasal specimen significantly increased sensitivity of COVID-19 rapid antigen tests, whether self-collected or collected by a healthcare worker, a randomized clinical ...

Rapid antigen tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are effective tools for the diagnosis of acute infection, particularly when used serially. 1 The percentage of ...