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 ...

A series of states have been combining two different types of coronavirus test results in their total numbers, potentially providing a muddled picture of the pandemic as the nation eases restrictions.

Video above: Companies test antibody drugs to treat COVID-19Antibodies that people make to fight the new coronavirus last for at least four months after diagnosis and do not fade quickly as some ...

Antibodies that people make to fight the new coronavirus last for at least four months after diagnosis and do not fade quickly as some earlier reports suggested, scientists have found. Tuesday’s ...