The BA.2 virus — a subvariant of the Omicron coronavirus variant — isn’t just spreading faster than its distant cousin, it may also cause more severe disease and appears capable of thwarting some of the key weapons we have against Covid-19, new research suggests.
Source: Coronavirus: As BA.2 subvariant of Omicron rises, lab studies point to signs of severity – CNN
“It looks like we might be looking at a new Greek letter here,” agreed Deborah Fuller, a virologist at the University of Washington School of Medicine, who reviewed the study but was not part of the research.


