UC Davis Health develops its own coronavirus test from scratch in just 19 days. The goal is to identify patients with COVID-19 as quickly as possible so they can be quarantined. The effort is led by ...

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 ...

There are three broad categories of coronavirus tests in the U.S. Two diagnose whether you have an active infection, and a third indicates if you previously had the virus. Most tests look for bits of ...