COVID-19 cases are rising across the United States, driven by new variants Stratus (XFG) and Nimbus (NB.1.8.1). While Stratus is anecdotally linked to hoarseness and Nimbus to severe sore throat, they ...

The Stratus or XFG variant transmits easily and is spreading worldwide. Stratus is a combination of variants F.7 and LP.8.1.2 ...

The “Stratus” variant (XFG) was first identified in January in Southeast Asia. By June, it accounted for 14% of COVID cases ...

COVID-19 activity is rising in much of the country. Data shows overall respiratory virus spread is very low in the U.S. But ...

A new COVID variant is on the rise amid a nationwide summer surge of cases and it's on track to become the third most common ...

As the new ‘stratus’ variant spreads, several US states face sharp COVID-19 spikes ahead of school reopenings.

The XFG “Stratus” COVID-19 variant, now the third most common in the US, is surging in 12 states with high positivity rates.