Stratus, the new Covid strain sweeping Britain, has two subtypes - XFG and XFG.2 - and has become the most dominant variant ...

Stratus has two strains, XFG and XFG.2, which currently make up approximately 30% of Covid cases in England, according to the ...

The new Omicron subvariant, NB.1.8.1 or Nimbus, is spreading in Europe, prompting health authorities to call for continued vigilance and booster vaccinations for at-risk groups.

A doctor has warned that a new strain of Covid-19 could be immune from the vaccine. The Stratus strain has spread across the ...

What you need to knowNB.1.8.1. — also called \"Nimbus” — is a subvariant of the dominant Omicron variant of SARS-CoV-2.It has ...