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 COVID-19 Stratus variant is spreading globally, showing new symptom patterns and raising questions about immunity, ...

NH epidemiologist Dr. Benjamin Chan emphasizes vaccines in interview discussing measles, flu, COVID-19, RSV and more.