After its January debut, XFG climbed to number three on the CDC COVID variant list by late June, accounting for an estimated ...

XFG or Stratus is currently the most prevalent COVID-19 subvariant in the Bay Area at 54%, according to WastewaterSCAN. (Unfortunately, you won’t be able to use the Centers for Disease Control and ...

Scientists are currently studying how well people are protected against severe disease from XFG. Researchers conducted lab studies using human cells and a "pseudovirus" stand-in for XFG, as well as ...

COVID-19 is surging again, indicated by rising wastewater levels and infections across many states. A new variant, Stratus ...