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

As the COVID-19 pandemic enters its fourth year, a negative result on a little plastic at-home test feels a bit less comforting than it once did. Still, you dutifully swab your nostrils before dinner ...

People can test themselves about as accurately at home with rapid antigen coronavirus tests as health care professionals using the same tests, according to a Johns Hopkins Medicine-led study published ...

They can result in false negatives, but they remain a valuable tool in stopping the spread of Covid-19. Here’s how to use them most effectively. By Dana G. Smith We’ve all heard the anecdotes: Your ...

COVID-19’s danger lay in its invisibility. The SARS-CoV-2 virus is highly contagious and can be passed on by people with light or no symptoms, making it extremely difficult to track and contain. But ...

RSV is short for respiratory syncytial virus. It’s a virus that can cause respiratory infections in your lungs, nose, and throat. It’s best to test for RSV soon after your symptoms start. That’s ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen test, it may not detect COVID after nine days, but it is more accurate for ...

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 ...