Beach trips and heat waves aren’t the only things rising this summer. COVID-19 signals are climbing nationwide, and two ...

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

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.