coronavirus tests

The market is risky for over-the-counter COVID tests. Demand has plunged dramatically since the height of the winter surge and may not rebound as more people are vaccinated.

The Food and Drug Administration says Abbott's BinaxNOW test and Quidel's QuickVue can be sold without a prescription.

The Food and Drug Administration gave emergency authorization to Ellume's rapid test in December, after it showed 96% accuracy in a U.S. clinical study.

A majority of hospital nurses said they had never been tested for the coronavirus, according to a recent survey. Hospitals say they are simply following the CDC's guidance.

More than 1 million Floridians have tested positive for coronavirus. The milestone comes as increasing numbers of people are getting tested.

An unreleased CDC review obtained by NPR shows that lab officials knew an early coronavirus test kit had a high failure rate. They decided not to recall it and sent it to the nation's labs anyway.

Health experts say when test results are delayed it impacts contact tracing and quarantine efforts that help prevent the disease from spreading.

Antigen tests are less accurate than PCR tests, but federal health officials say their ability to produce results within minutes makes them important tools for curbing the spread of the virus.

The Trump administration’s latest effort to use COVID-19 rapid tests — touted by one senior official as a “turning point” in arresting the coronavirus’s…

Since loss of smell is one of the earliest symptoms for many people, experts have raised the idea of using a smell test as part of coronavirus screenings.