SAN FRANCISCO (KGO) -- Besides learning about science and art, kids at a San Francisco summer camp got an even bigger lesson this week about the coronavirus. It began with an unusual request - "You ...
A PCR test detects the actual genetic material of the virus and involves a step that amplifies the presence of any material ...
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 ...