The question quickly arose whether existing rapid antigen tests could detect newly emerging variants. Using clinical samples obtained from diagnostic labs throughout the U.S. from 2020 to 2023, the ...

If you had COVID-19 symptoms in 2020, you probably would have masked up and braved a visit to a laboratory, doctor’s office, or clinic to get a polymerase chain reaction (PCR) test. A health care ...

SAN FRANCISCO, California (WLS) -- United Airlines is set to become the first carrier in the U.S. to launch a COVID-19 testing program for travelers. The hope is to make it easier to manage ...

At-home COVID-19 tests have become commonplace for many households, but knowing when exactly to take a rapid test — or when to throw old ones out — isn't always straightforward. Here's what health ...

A rapid, highly accurate test has been developed for diagnosing hepatitis C virus (HCV), according to a study published online Dec. 10 in the Journal of Infectious Diseases. Jennifer L. Reed, M.D., ...