COVID-19 cases are rising across the United States, driven by new variants Stratus (XFG) and Nimbus (NB.1.8.1). While Stratus ...

CDC wastewater also shows the XFG variant — nicknamed stratus — is most common in the U.S. Stratus can cause a “razor blade” ...

The COVID-19 variant that may be driving a recent rise in cases in some parts of the world earned a new nickname: "razor blade throat" COVID.

If you have a severe sore throat, it may not be what you think. CBS News New York health reporter Jenna DeAngelis spoke with doctors about what new COVID variant that seems to be spreading.

Dr. David Winter from Baylor Scott & White explains this new strain of the virus.