In the last month, the XFG variant has driven an increasing proportion of cases. As of Aug. 13, Stratus is now the ...

A new COVID variant is on the rise amid a nationwide summer surge of cases. Positive cases in Mississippi are climbing. What ...

A new COVID-19 variant, “Stratus” (XFG), is spreading in the US, with western and southern states reporting the highest ...

For the week ending Aug. 2, 6.4% of COVID-19 tests came back positive in Wisconsin, state Department of Health Services data ...

A new COVID-19 variant, Stratus (XFG), has been detected in Arizona and is spreading globally. Stratus is a descendant of the ...