The African Health Research Insitute, based in Durban, South Africa, announces results of a study that "strongly suggests" that existing vaccines might prove less effective against Omicron. But Executive Director of the AHRI, Professor Willem Hanekom, says "although this may suggest that the vaccine may work less well, we need to look at effectiveness of the vaccines on a population basis." SOUNDBITES of African Health Research Insitute executive director, Willem Hanekom