Omicron Sublineages Evade Antibodies From Earlier Infections (1)

New omicron sublineages show an ability to evade antibodies from earlier infection and vaccination, a South African laboratory study has found.

The findings could signal a fresh wave of infections by the BA.4 and BA.5 sublineages of the omicron variant that were discovered this month in South Africa.

Blood samples from people who had been infected with the original omicron variant saw an almost eightfold drop in neutralizing antibody production when tested against the BA.4 and BA.5 sublineages, the study, led by the Africa Health Research Institute in South Africa, showed.

Samples from people who were vaccinated showed about a ...