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 ...

Rapid antigen tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are effective tools for the diagnosis of acute infection, particularly when used serially. 1 The percentage of ...

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 ...

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, ...

If you're testing for COVID-19, you'll want to know what a positive test looks like—and what it means if you get a faint line. For those who test positive, the time it takes for the line to appear on ...

With flu and RSV seasons set to soon heighten, when should you test for COVID if you are sick and how often? The federal government recently resumed its program of shipping out free COVID tests to ...

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 ...

Over a million Slovaks took a coronavirus swab on Saturday as the country launched a huge logistical operation to test most of its population over the weekend to reverse a rise in the pandemic.