Johnson & Johnson's Covid-19 vaccine is 73.6% effective, according to new real-world study, WHO authorizes an Indian-made vaccine

Johnson & Johnson's Covid-19 vaccine is 73.6% effective, according to new real-world study 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. John Bonifield, CNN CNN

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The study evaluated patients within the Mayo Clinic Health System between February and July of this year. The researchers followed nearly 9,000 patients vaccinated with the J&J vaccine and nearly 89,000 patients who were unvaccinated. They looked specifically to see how many of them tested positive for 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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