Scientists have known that major outbreaks often originate in wildlife – swine flu, avian flu and even SARS-CoV-2 all started ...

When the first reports of a new COVID-19 variant emerge, scientists worldwide scramble to answer a critical question: Will ...

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 ...