Effectiveness of Ad26.COV2.S and BNT162b2 Vaccines against Omicron Variant in South Africa.
Glenda E GrayShirley CollieAmeena GogaNigel GarrettJared ChampionIshen SeocharanLesley BamfordHarry MoultrieLinda Gail BekkerPublished in: The New England journal of medicine (2022)