but, at this stage, what is confirmed to be dominant are subvariants of omicron called b.4 and b.5," said phaahla.

kambe, eka nkarhi wa sweswi, mixaka leyi nga tiyisisiwa ku va yi ri kona hi vunyingi i mixakatsongo ya omicron leyi vitaniwaka b.4 na b.5," ku vula phaahla.
