A new Covid variant called Stratus or XFG is spreading across 38 countries. The World Health Organisation is monitoring this ...

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

The new Covid strain, XFG, nicknamed Stratus, is becoming the dominant strain. The World Health Organisation has designated ...

A new strain of COVID-19, XFG, is spreading rapidly across the world, including in the United States. Anecdotally, people who ...