The variant is officially called NB.1.8.1, or Nimbus. Some patients say it's causing them such a severe sore throat that they feel like they're swallowing razor blades. "Your throat is so dry, so ...

An unusual and alarming symptom has emerged with the spread of a new COVID-19 variant called Nimbus (NB.1.8.1), which is ...

A new Covid variant spreading around the U.S. may come with an incredibly unfortunate symptom now commonly referred to as ...