Countries straining to contain a second wave of COVID-19 are turning to faster, cheaper but less accurate tests to avoid the delays and shortages that have plagued efforts to diagnose and trace those ...

Democratic presidential nominee Joe Biden tested negative again for COVID-19 on Sunday in a polymerase chain reaction (PCR) test, his campaign said, according to a press pool report.

The best way to know if a sore throat is a COVID symptom is to take a test.

It's officially flu season. You've been invited to a get-together with friends and would love to attend, but have been ...

Covid-19 has infected more than 235M people and killed over 4.8M globally. Here are the virus-related developments for October 4: ...

There are relatively few snow leopards in the world, and it has likely been that way for a long time, a new study indicates. This situation increases their risk of extinction in a changing environment ...

Question: I think I might have been bitten by a tick on a recent visit to a national park. The area was sore but I don’t think it had a bull’s eye rash. I am anxious about it as I am terrified of ...

President Donald Trump’s approval rating dipped to 40%, a low point for his second term, in the latest Reuters/Ipsos poll released Wednesday, as two polls show Americans blame Republicans more than ...