A new COVID variant called Nimbus or NB.1.8.1 is causing "razor blade throat," experts say. Here's what to know about the new COVID symptom and how to stay safe

That's because the variant — NB.1.8.1. or “Nimbus” — may cause painful sore throats. The symptom has been identified by doctors in the United Kingdom, India and elsewhere, according to media outlets in those countries. Other COVID-19 symptoms of any variant include fever, chills, cough, shortness of breath or loss of taste or smell.