AstraZeneca said Monday that the results of its COVID-19 vaccine trials provide evidence that its shot provides “100% efficacy against severe or critical disease and hospitalization.” AstraZeneca said in a statement that the safety and efficacy analysis was based on 32,449 participants in U.S. trials. “Vaccine efficacy was consistent across ethnicity and age. Notably, in … continue reading -> “AstraZeneca: Vaccine Provides ‘100% Efficacy’ Against Severe, Critical COVID-19 Disease”