NEW YORK -- Millions of Americans have purchased rapid COVID-19 tests online or at local stores and signed up to receive test kits through a free government program. Unlike conventional, lab-processed ...

Add Yahoo as a preferred source to see more of our stories on Google. As we get into another winter holiday season, COVID is still part of our lives. And although it's hard to predict exactly what ...

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 ...

“Infectious diseases don’t respect borders,” says Khoa Thai, a clinical microbiologist at the Star-shl medical diagnostics laboratory in the Netherlands. To limit their spread, we need a globally ...

Add Yahoo as a preferred source to see more of our stories on Google. "Knowing how long you will test positive for COVID-19 is crucial for patients as it provides clarity on the duration of their ...