Rapid antigen testing using a nasal swab with the BinaxNOW test was able to detect the Omicron variant at an urban community testing site, whereas other swabbing routes did not perform as well, ...

In the early days of the pandemic, public health officials scrambled to get a read on the new viral outbreak. The CDC covered all its bases, recommending specimens be sent to them in three ways for ...

It may be best to repeat an early COVID-19 antigen a test a day or two later for symptomatic individuals who have negative results, the authors of a new study say. Investigators from federal and state ...