The XFG strain, nicknamed "Stratus," is the predominant variant currently circulating. It has been on the rise since May in ...

CDC wastewater also shows the XFG variant — nicknamed stratus — is most common in the U.S. Stratus can cause a “razor blade” ...

Up to six million older adults aged between 65 and 74 will not receive a COVID-19 jab this winter, even thought they were ...