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Lower Efficacy Rate Of J&J’s COVID-19 Vaccine Presents ‘Messaging Challenge’

Executive Summary

While vaccine has efficacy rate of 74% in the US, it completely prevented hospitalizations and deaths, which Fauci says is the most important result from a public health perspective. Vaccine findings cannot be compared given emergence of variants since Moderna and Pfizer conducted their studies, Janssen global head of R&D says.

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