Data from a real-world study assessing Johnson & Johnson's COVID-19 vaccine finds it is 73.6% effective.
— Data from a real-world study assessing Johnson & Johnson's COVID-19 vaccine finds it is 73.6% effective, according to research published Tuesday in the journal JAMA Network Open.
Among the 8,889 vaccinated patients, 60 had a positive PCR test. Among the 88,898 unvaccinated patients, 2,236 had a positive PCR test. The researchers concluded the vaccine was 73.6% effective and led to a 3.73-fold reduction in coronavirus infections. The finding is similar to clinical trial data that found the vaccine was 66.9% effective against moderate to severe Covid-19.
In an accompanying commentary, Dr. Mohammad Sajadi of the Institute of Human Virology at the University of Maryland School of Medicine, argued that the findings are part of a growing body of work that suggests"room for improvement" with the J&J vaccine.
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