COVID-19 variant XFG accounted for 0% of U.S. cases in May. By late-June, it became the third-most common strain.

According to the Centres for Disease Control and Prevention (CDC), as of July, the new variant Stratus (XFG) has accounted ...

The NB.1.8.1 COVID variant has spread to multiple US states after causing significant surges in China and Hong Kong. Health ...

If anyone needed a reminder that US health secretary and fervent anti-vaccine advocate Robert F. Kennedy Jr. has no ...