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

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

The new COVID-19 variant, XFG or "Stratus" originates from mutations of variants F.7 and LP.8.1.2. It appears less contagious ...

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

Children going back to school and the cooling weather pushing people back inside means that conditions in September and October could start to push cases up, scientists warn ...

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.