Moderna's vaccine is the most effective, but Pfizer and J&J also protect well, CDC-led study says
CNN
A head-to-head study of all three authorized coronavirus vaccines in the United States finds the Moderna vaccine is slightly more effective than Pfizer's in real-life use in keeping people out of the hospital, and Johnson & Johnson's Janssen vaccine comes in third, but still providing 71% protection.
Pfizer's vaccine provided 88% protection against hospitalization, and Moderna's was 93% effective.
The US Centers for Disease Control and Prevention led a nationwide study of vaccination involving more than 3,600 adults hospitalized for Covid-19 between March and August.
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