J&J Has A Plan B If Gamechanger Single Dose Vaccine Disappoints

OWS Leader Predicts Success

If J&J’s gamble on a single dose pays off, it could rapidly advance the fight against SARS-CoV2 – but a second study will provide a safety net.

J&J vaccine trial
J&J's single dose vaccine could be a gamechanger - but has to come close to the efficacy achieved by Moderna and Pfizer/BioNTech's products. • Source: Michael Ciaglo/Getty Images

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