First real world data out of Italy, based on 37,000 vaccinated people. One dose of AZ has 99% efficacy against severe disease/hospitalization, and 100% efficacy against death (only 1 vaccinated person died and was 96 years old). @sailorrooscout https://t.co/xEpQ4Mx9SV

— Marco_Trizzino Lab (@marcotrizzino) May 13, 2021