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 ...

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 ...

COVID-19 rapid tests are easy to take—and then toss. So most people never report their results, which leaves health officials with an incomplete picture of how much virus is circulating and where. The ...

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Thousands of lives could have been saved at relatively little cost, if nursing home operators had made wider use of rapid COVID-19 tests during the pre-vaccine days of the pandemic, a study published ...

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 ...