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 ...

Until President Trump's coronavirus infection, the White House strategy for keeping him and others in the administration safe was one of testing only. The President was rarely seen engaging in two of ...

At a laboratory in Sentara Norfolk General Hospital, scientists are analyzing blood samples to determine whether some people have previously had an infection caused by the coronavirus. They have been ...

Some COVID-19 patients are testing positive after recovering in Asia, but experts say the presence of antibodies should guarantee short-term immunity ...