A new COVID-19 variant called NB.1.8.1 is seeing a surge in US and has become a cause of concern for health officials.

A new COVID variant is causing people to experience such severe sore throats that they say it feels like swallowing razor blades.

Patients are reporting a "razor blade throat" symptom — potentially due to the new "Nimbus" COVID variant — in which their ...

A new COVID-19 variant, nicknamed Nimbus, is rising around the world — including in California — and known for giving “razor ...

COVID-19 appears to be on the rise in some parts of California as a new, highly contagious subvariant — featuring “razor ...

COVID appears to be on the rise as a new, highly contagious subvariant — featuring “razor blade throat” symptoms overseas — ...