2 doses of Johnson & Johnson's vaccine 85% effective against hospitalizations: South African study The Citizen 4 years ago J&J also found its vaccine likely works as a booster for those who got Pfizer. Source: ABC News 6 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on LinkedIn (Opens in new window) LinkedIn Print (Opens in new window) Print J&J seeks US clearance for COVID-19 vaccine booster dosesDateOctober 5, 2021In relation toSimilar postPennsylvania woman 1 of 6 who developed rare blood clot linked to J&J vaccineDateApril 14, 2021In relation toRobesoniaFDA panel endorses booster shot for J&J COVID-19 vaccineDateOctober 15, 2021In relation toRobesonia
