Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.

How accurate are the coronavirus tests used in the U.S.? Months into the outbreak, no one really knows how well many of the screening tests work, and experts at top medical centers say it is time to ...

March 15 (Reuters) - The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the ...

2025 update: This federal program has ended and free tests are not current available from the government website. Federal health officials have justified the millions they have spent on device ...

Few people who have undergone nasopharyngeal swabs for coronavirus testing would describe it as a pleasant experience. The procedure involves sticking a long swab up the nose to collect a sample from ...

How many times have you stared at a home COVID-19 test, waiting for the faint line that confirms an infection? Those home antigen tests often fail to detect a recent infection or one with no symptoms.

Testing positive for COVID-19 is not exactly a positive experience. After all, wanting to go viral these days doesn’t tend to mean wanting to be infected by the severe acute respiratory syndrome ...