Ducharme is a contributor to TIME. Ducharme is a contributor to TIME. After a recent COVID-19 exposure, Dr. Christina Astley tested positive on an at-home test—but just barely. The line signifying a ...

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

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 ...

Households will be able to obtain four free antigen COVID-19 tests by visiting COVIDtests.gov, and filling out their name and shipping address, a repeat of the 2023 program. And the department says ...

Every household in the United States now is eligible to order more free rapid COVID-19 test kits from the federal government. Beginning Nov. 20, households that previously ordered tests this fall ...

Nothing puts a damper on your holiday plans like a positive COVID-19 test. But what if that line is super faint? Do you still have COVID-19 —or can you go ahead and attend your office party like you ...

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 ...

Since the start of the pandemic, the FDA has issued emergency use authorizations to a whopping 444 diagnostic tests and sample collection devices to detect the COVID-19 virus. In recent months, ...

This researcher at Virginia Tech uses a waterproof bag to capture air, in the development of a COVID air sampling device. (Courtesy Virginia Tech) Researchers at Virginia Tech are working on a device ...

Oceanit’s ASSURE-100 Rapid COVID-19 Home Test is now being sold online. The FDA approved ASSURE-100 for emergency use in December 2022, allowing it to be sold over the counter to consumers. Previously ...