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 ...

With new COVID cases in Florida on the rise, taking an easy-to-get rapid test can give you quick results. But the timing has become tricky. If you have COVID-19 symptoms, such as fever ...

Health officials recommend not automatically following the expiration date listed on a rapid test kit, as some expiration dates have been extended by the FDA. A resident displays an at-home rapid ...

Not all health plans will be ready for the Covid tests to be free upfront at stores, relying at first on receipts and reimbursement. By Sarah Kliff Starting Saturday, new federal rules will ...

In early January, more than 700 Stanford University athletes took rapid Covid tests upon returning to the campus. Those who tested negative — and some who tested positive — were also given ...

As convenient as home rapid tests are, many people wonder about their accuracy. How often do people get false negatives? Is one brand better than another? With so many people testing negative on ...

Rapid tests are a quick and convenient way to learn about your COVID-19 status. The timing, temperature, and even what you eat before getting tested could affect your results. Recent studies ...

Since the COVID-19 pandemic, pretty much everybody is familiar with this technology: paper-based rapid test strips, also called lateral flow immunoassays (LFIAs). They enable easy detection of ...

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 ...