A new COVID-19 variant spreading across the United States may cause an extremely painful sore throat—dubbed the "razor throat"—among its symptoms. The new "Nimbus" strain, also known as COVID-19 NB 1.

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

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