
New COVID Strains Nimbus and Stratus Drive US Infection Surge
A new COVID-19 variant called XFG or 'Stratus' has become the dominant strain in the U.S., characterized by a severe sore throat described as a 'razor blade' sensation, along with other symptoms like cough, congestion, and fatigue. It has rapidly overtaken previous strains, with high case levels in several states, despite limited vaccine access in some areas.









