Medically reviewed by Kate Colby, MPH People with asymptomatic or mild COVID illness generally test negative after nine days, but a polymerase chain reaction (PCR) test can still be positive for up to ...

COVID cases are starting to creep up again in the U.S., and it’s understandable to have new questions about the virus and the newest CDC guidance on isolation after a positive test. After all, it’s ...

So you want to know if you have COVID-19. You have a fever and are worried you may have been infected. Or you have a holiday planned or an event to attend and want to know if it’s OK to proceed. In ...

Many test venues providing free polymerase chain reaction (PCR) tests to detect novel coronavirus infections are trying to attract test takers with shopping vouchers. “These are shopping vouchers you ...

COVID-19 has been around for the best part of a year, and medical technology has been racing to keep pace with the rise in infections and viral mutations. Until recently, unless you were presenting ...