A new COVID-19 variant, known as XFG or “Stratus,” is surging across the United States, swiftly becoming the third-most ...

XFG is a recombinant of variants F.7 and LP.8.1.2, the latter now 2nd most common in the US. It may evade immunity better but doesn’t spread faster.

COVID-19 cases are rising in the US, driven partly by the new 'Stratus' variant. Wastewater data shows increased viral ...

Variant XFG, colloquially known as "Stratus," was first detected in Southeast Asia in January but accounted for less than ...

The Health Ministry reports six cases in Israel of the new COVID-19 variant XFG, nicknamed “Stratus.”The strain, first identified in Southeast Asia in January, is spreading in the United States and ...

Children going back to school and the cooling weather pushing people back inside means that conditions in September and ...