Add Yahoo as a preferred source to see more of our stories on Google. Experts are monitoring increases in COVID-19 cases in the U.S. driven by new, highly infectious variants. So take a moment to make ...

For most people, having an at-home COVID test or two handy is just a normal part of life these days. But, if you happen to take a test and get a positive you weren’t expecting, it’s more than ...

The government is ready to declare COVID-19 over: The nationwide state of emergency is set to end on May 11. In California, the state of emergency concluded in February. Johns Hopkins University shut ...

Dr. Matthew Binnicker, an expert in the diagnosis of infectious disease, explains the benefits and limitations of diagnostic testing as more people receive Covid-19 vaccinations. More than 61 million ...

Several conditions can cause a false-positive syphilis test result. However, healthcare professionals often use two different tests to diagnose a person with syphilis. Syphilis is a sexually ...