COVID cases are rising with new variants ‘Nimbus’ and ‘Stratus’: Should we be worried?

New COVID variants, Nimbus and Stratus, are driving rising case numbers across the UK, US, and Europe. While not causing more severe illness, Nimbus is highly transmissible with a distinct sore throat, and Stratus evades immunity. Experts emphasize precautions like updated vaccinations to manage rapid spread and potential health system strain.