Using clinical samples obtained from diagnostic labs throughout the U.S. from 2020 to 2023, the National Institutes of Health, through its Variant Task Force, analyzed the effectiveness of more than ...

Welcome to what some experts say is the country’s second largest COVID wave since the start of the pandemic. In the past few weeks, there’s been a striking increase in new cases, hospitalizations, and ...

Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test ...

Michael DePeau-Wilson: Right. So quantitative results on rapid antigen COVID-19 tests refers to this idea that the result is more than just a yes/no answer about whether you have the virus in your ...

Nothing puts a damper on your holiday plans like a positive COVID-19 test. But what if that line is super faint? Do you still have COVID-19 —or can you go ahead and attend your office party like you ...

With flu and RSV seasons set to soon heighten, when should you test for COVID if you are sick and how often? The federal government recently resumed its program of shipping out free COVID tests to ...

You probably have a cabinet full of rapid COVID-19 tests you’ve accumulated. The expiration dates have come closer and closer, with some tests even reaching them. The Food and Drug Administration, ...

The days of free at-home COVID-19 tests may be over, but the virus certainly hasn’t gone away. With symptoms that overlap ...

The White House required that journalists on Thursday take a rapid coronavirus test before participating in the press briefing frequently attended by President Donald Trump. The White House Medical ...

Taking a COVID-19 test at home seems simple enough: If you get a line, you're positive for the coronavirus. But what if your results aren't so obvious? For instance, if you only get a very faint line ...