SAN FRANCISCO -- There has been a lot of talk about testing for the coronavirus, but you may not entirely understand what the different tests are for. The coronavirus makes some people sick, some ...

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 ...

WHO has prequalified two rapid COVID-19 antigen tests, confirming their safety and quality and expanding access to fast, ...

The FDA has extended the shelf life for some COVID-19 tests. Now that allergy season is here, many are finding themselves with symptoms asking: Is it allergies or a cold? COVID? Something else? Since ...

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. Bay Area-raised host Ericka Cruz Guevarra brings you context and analysis to ...

COVID-19 infections are rising again across the U.S. Here's which symptoms to look for and how to protect yourself over the ...

Three Americans from different parts of the country told Insider they recently experienced extreme delays in receiving coronavirus test results.