Tag: sample
Free COVID tests are coming back. Here's how to get yours
Coronavirus infections have come roaring back this year, prompting the Biden administration to renew one of its earliest responses to the...
New genetic research points to Wuhan animal market as origin of COVID pandemic, study says
A new analysis of genetic material gathered from a live-animal market in Wuhan in the early weeks of the COVID-19 pandemic strengthens...
An industrial chemical is showing up in fentanyl in the U.S., troubling scientists
An industrial chemical used in plastic products has been cropping up in illegal drugs from California to Maine, a sudden and puzzling...