Variant XFG, colloquially known as "Stratus," was first detected in Southeast Asia in January but accounted for less than ...

COVID-19 cases are rising again in the United States, and the "stratus" variant might be to blame. The big picture: A summer ...

A new COVID variant, "Stratus", has grown in the U.S. and has now climbed the ranks, but little is known about its impact in ...

The US is experiencing a summer surge in COVID-19 cases, with infections rising in 40 states, particularly in the South and ...

A new variant of COVID-19, named Stratus, has been identified in Ukraine’s Poltava Oblast, with the World Health Organization (WHO) placing it under monitoring due to its rapid global spread, ...