Test positivity for common cold coronaviruses significantly declined following widespread SARS-CoV-2 infection and COVID-19 ...

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

SARS-CoV-2 articles from across Nature Portfolio SARS-CoV-2 is a positive-sense single-stranded RNA virus. It is contagious in humans and is the cause of the coronavirus disease 2019 (COVID-19).