Previously, the FDA had advised taking two rapid antigen tests over two or three days to rule out infection. But the agency says new studies suggest that protocol can miss too many infections.
The laws governing Medicare don't provide coverage for self-administered diagnostic tests, including rapid antigen tests. Here's how older adults can get free tests anyway.
Recent research and anecdotes suggest people are testing negative on rapid tests even after they have symptoms, then later testing positive. Here's what researchers think is going on.
Previous versions of the coronavirus didn't transmit as easily outdoors thanks to airflow that dispersed viral particles. But what about the highly transmissible omicron variant?
We answer key questions about COVID tests: What types are there? Should you self-test right after exposure to someone with COVID? And what should you do if you test positive?
With a fast-growing winter surge upon us, self-testing kits remain expensive and hard to find. The reasons go back to the approach the U.S. took from the outset in developing tests.
Intergenerational indoor gatherings, a.k.a, Thanksgiving dinner, still pose a COVID risk to older adults and the immunocompromised. Here's how to keep everyone safe.
