Pfizer, Moderna vaccines are 90% effective after two doses in study of real-life conditions, CDC confirms (Washington Post)

Washington Post: Pfizer, Moderna vaccines are 90% effective after two doses in study of real-life conditions, CDC confirms. “In a study of about 4,000 health-care personnel, police, firefighters and other essential workers, the Centers for Disease Control and Prevention found that the vaccines reduced the risk of infection by 80 percent after one shot. Protection increased to 90 percent following the second dose. The findings are consistent with clinical trial results and studies showing strong effectiveness in Israel and the United Kingdom, and in initial studies of health-care workers at the UT Southwestern Medical Center and in Southern California.”

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