A second dose of Johnson & Johnson’s COVID-19 vaccine worked just as well as Moderna and Pfizers’ two dose shots, the company said Tuesday.The company said in a press release, citing its own studies, that the booster provided:The second dose was administered two months after the first dose, the company said. For context, Moderna’s COVID-19 vaccine was given 28 days apart and Pfizer’s 21 days apart in trials. There’s some evidence that Moderna and Pfizer’s shots have worked better in countries, s
https://www.businessinsider.com/2-shots-johnson-johnson-vaccine-effective-pfizer-moderna-study-2021-9