J&J COVID-19 booster shot reduces Omicron hospitalisations: Study

Researchers on Thursday said a South African study found that a second shot of the Johnson and Johnson (J&J) COVID-19 vaccine was 84% effective at preventing hospitalisation, 14 days after being given. The study is based on a second dose of the J&J COVID-19 vaccine by the South African Medical Research Council given to 69,092 healthcare workers.