Two recent subtypes of the Omicron virus are much better at evading our immune defences. These subvariants are now dominant in southern Africa and they are spreading elsewhere. Show more
Discover 11,128,835 listings and 280,065 playable programmes from the BBC
Two recent subtypes of the Omicron virus are much better at evading our immune defences. These subvariants are now dominant in southern Africa and they are spreading elsewhere. Show more