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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Starting Monday, American households can now apply to receive four free at-home COVID-19 tests from the U.S. government, though ...

In the span of a week, state health officials went from bracing for an outbreak in southern Vermont to declaring there was none. The 65 positive COVID-19 test results reported in Manchester last week, ...

As we get into another winter holiday season, COVID is still part of our lives. And although it's hard to predict exactly what this year's cold, flu and coronavirus season will look like, experts want ...

Use of Coronavirus Rapid Tests May Have Fueled White House Covid-19 Cluster, Experts Say The administration has relied on testing to help prevent the spread of Covid-19 in its ranks, while forgoing ...