ROME—COVID-19 infections in adults of all ages fell by 80% five weeks after a first dose of Pfizer, Moderna or AstraZeneca vaccine, according to Italian research published on Saturday.
The first such study by a European Union country on the real-world impact of its immunization campaign was carried out by Italy’s National Institute of Health (ISS) and the Ministry of Health on 13.7 million people vaccinated nationwide.
Scientists started studying data from the day Italy’s vaccination campaign began, on Dec. 27, 2020, until May 3, 2021.
The analysis showed that the risk of SARS-CoV-2 infection, hospitalization, and death decreased progressively after the first two weeks fol…
Keep on reading: Italian study shows COVID-19 infections, deaths plummeting after jabs