U.S. households could once order free COVID-19 tests, but that program is over. Here's how to get a test and a look at COVID ...

At the top of the list is the BinaxNOW COVID-19 Antigen Self-Test. Prices are consistent in stores and online. A two-pack kit, which you can get at CVS or Walgreens, will cost between $18 and $24.

The XFG COVID-19 variant, aka "Stratus," is spreading rapidly in the U.S. as cases climb. Here's what to know about symptoms ...

You can exhibit COVID-19 symptoms yet test negative due to early infection, low viral load, or immune response. PCR testing ...

Scientists and public health experts built the COVID-19 pandemic response on years of experience navigating infectious disease outbreaks. Although lateral flow immunoassays have been central to ...

Liquid crystals, the same technology found in TV screens, strip thermometers, and mood rings, could soon be used in the next ...

California’s COVID positivity rate has topped 10% and is still on a steep climb, nearly tripling since June, according to new data from the state’s Department of Public Health. “Anecdotally, I feel ...