As the Delta variant became the dominant strain of the coronavirus across the United States, all three COVID-19 vaccines available to Americans lost some of their protective power, with vaccine efficacy among a large group of veterans dropping between 35% and 85%, according to a new study.
Coronavirus
Los Angeles Times: Study shows dramatic decline in effectiveness of 3 COVID-19 vaccines
Employees in clean room clothes work on the production of Pfizer/BioNTech's Comirnaty COVID-19 vaccine at the Allergopharma plant in Reinbek near Hamburg, northern Germany, on April 30, 2021, amid the novel coronavirus/ COVID-19 pandemic.
