Johnson booster 85% effective against Omicron: S.Africa study
JOHANNESBURG, Dec 30, 2021 (AFP) – A booster of US coronavirus vaccine Johnson & Johnson was 85 percent effective in preventing serious illness in areas where Omicron was dominant, a South African trial study indicated Thursday. The South African Medical Research Council conducted the study on health workers from November 15 to December 20, but it has still … Read more