A new COVID variant is spreading quickly in the U.S. and bringing with it a painful new symptom.

Airport screening has detected the variant in travelers arriving in California, Washington, Virginia, and New York.

Cases of the recently identified Covid-19 variant NB 1.8.1. are rising. Some have dubbed the variant "razor blade throat" for ...

A new COVID-19 variant marked by a painful “razor-blade throat” symptom is spreading rapidly in the United States. The strain ...

A new COVID-19 variant, dubbed NB.1.8.1, or Nimbus, is becoming increasingly prevalent in the United States. Have any cases ...