New Omicron BA.4, BA.5 sublineages may evade vaccines, natural immunity. What experts say
The BA.4 and BA.5 sublineages appear to be more infectious than the earlier BA.2 lineage
The sublineages have been detected in seven of South Africa’s nine provinces and 20 countries worldwide
New omicron sublineages, discovered by South African scientists this month, are likely able to evade vaccines and natural immunity from prior infections, the head of gene sequencing units that produced a study on the strains said, according to Bloomberg report.