Our fall COVID boosters will likely be a monovalent XBB formula
Our fall COVID boosters will likely be a monovalent XBB formula

arstechnica.com
Our fall COVID boosters will likely be a monovalent XBB formula

Our fall COVID boosters will likely be a monovalent XBB formula
Our fall COVID boosters will likely be a monovalent XBB formula
So a monovalent booster should not wane in effectiveness as the bivalent?
I think it's just that the bivalent booster was targeting (a) an extinct variant and (b) a different Omicron subvariant. This will target some form of Omicron XBB, I think, which has been the dominant strain for months now.