Results are detected within just a few minutes, the agency said. The Food and Drug Administration has granted emergency use authorization for a COVID-19 test that uses breath samples -- the first of ...

Costco is now offering at-home testing for COVID-19. The retailer's new saliva test can only be bought online. Because it's a spit test, you don't have to worry about a long nasal swab. The process is ...

CHICAGO, Ill. -- Scientists are continuing to develop new COVID-19 testing methods. Everything from throat swabs and saliva tests to breathalyzers are potential options. The federal government has ...

Most existing COVID-19 tests "rely on the same principle, which is that you have accumulated a detectable amount of viral material, for example, in your nose," says study lead author Frank Zhang, who ...

The United States government has discontinued its free at-home COVID-19 test program after four years. The program, which began in 2021, shipped over 900 million tests directly to U.S. households.

The Food and Drug Administration has granted emergency use authorization for a COVID-19 test that uses breath samples — the first of its kind to get the agency’s green light. The device, called the ...