The FDA has issued emergency authorizations to 12 antibody tests for the virus. As federal officials gradually begin reopening the country, expanded testing is central to the conversation. Until now, ...

It was possible -- albeit rare -- for people not infected with SARS-CoV-2 to have persistent false positive rapid antigen COVID-19 tests, longitudinal data showed. Among a large cohort of over 11,000 ...

Countries straining to contain a second wave of COVID-19 are turning to faster, cheaper but less accurate tests to avoid the delays and shortages that have plagued efforts to diagnose and trace those ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." TAKING A COVID-19 TEST is probably your first instinct when you wake up with a fever or sore throat or ...

Most of us have taken a COVID test at home. The uncomfortable nasal swab, the anxious waiting as the red lines bleed into either positive or negative. And then finally, the result. The whole process ...

The Food and Drug Administration (FDA) has cleared ACON Laboratories’ Flowflex COVID-19 Antigen Home Test, the first over-the-counter (OTC) antigen test. Previously, the test was authorized for ...

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 ...

European countries are looking at buying millions of COVID-19 rapid tests mostly from Roche and Abbott , an EU document shows, as global production of the tests is stretched by a surge in infections.

At-home rapid COVID-19 tests can reveal more about viral load than a simple positive/negative result, according to experts. "By definition, the basic technology suggests that you somehow have to go ...