Welcome, everyone. I'm Dr. John Whyte, the chief medical officer at WebMD, and you're watching Coronavirus in Context. Timely diagnosis of COVID is critical to make sure you get the best care and ...

The low-cost test developed by Professor Vinayak Dravid and research professor Gajendra Shekhawat builds on an existing ...

Rapid Covid home tests are more likely to give a false negative with the heavily-mutated Omicron variant compared to earlier strains, the US Food and Drug Administration (FDA) said Tuesday.

Medically reviewed by Jordana Haber Hazan, MD 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 ...

Taking a COVID-19 test at home seems simple enough: If you get a line, you're positive for the coronavirus. But what if your results aren't so obvious? For instance, if you only get a very faint ...

Secondary schools in Hong Kong will no longer be required to conduct daily rapid antigen tests (RAT) for the coronavirus from next Wednesday. But the rule would remain for primary schools ...