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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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