Razor blade throat Covid variant spreading very fast in U.S - Americans need to keep these things in mind

A new COVID variant called Nimbus is spreading in the US. This variant, officially known as NB.1.8.1, causes severe sore throats. Health experts are monitoring it closely due to summer travel. Nimbus appears to spread more easily. Vaccination is still important. The elderly and immunocompromised should take precautions.