Julie Cruz takes a sample at the GeneIQ COVID-19 testing site at Dallas College Richland Campus on Wednesday, Jan. 19, 2022, in Dallas, TX. Juan Figueroa / Staff Photographer At-home COVID-19 tests ...

Anyone who has had a COVID-19 PCR test done knows the drill — a swab up the nose and then the tester pops the swab into a plastic bag and off it goes. That’s when the hard work begins of determining ...

Scientists from around the world are using nose swabs to track the emergence of SARS-CoV-2 variants. Here's how it works. to track the emergence of SARS-CoV-2 variants. Here's how it works. and then ...

COVID-19 cases in the U.S. are at record numbers, fueled by the spread of the omicron variant. The country’s daily test volume has risen in tandem, and is now at its highest compared to any other ...