Technique matters when it comes to getting a sufficient amount of virus for a rapid test. Images By Tang Ming Tung/Digital Vision via Getty Images As fall temperatures set in, cold and flu season gets ...

Boxes of iHealth COVID-19 antigen rapid test are distributed in January in Redondo Beach. (Jay L. Clendenin / Los Angeles Times) At-home coronavirus screening has become a way of life for many ...

NEW YORK -- Millions of Americans have purchased rapid COVID-19 tests online or at local stores and signed up to receive test kits through a free government program. Unlike conventional, lab-processed ...

BERKELEY -- False-negative rapid COVID tests are on the rise. When Carl Berger got sick earlier this year, he figured he had COVID-19 because his wife had the virus. "I think I had a headache and I ...