“Stratus,” originally known as Variant XFG, is the second most prominent strain of COVID in the United States. According to ...

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.

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

Moderate "HeatRisk" to affect North, East, South Bay, and some counties in California with highs up to 100°F and fire weather ...