Sars-CoV-2 infections collapsed by 95%, cases of overt Covid disease -99%. These are two of the most significant preliminary data that emerged from the first study conducted on Italian vaccinated people, in Pescara. And to explain them is one of the authors: Lamberto Manzoli, director of the Department of Medical Sciences and professor of epidemiology and public health at the University of Ferrara. “The ASL of Pescara, which had been vaccinating since January 2 – he explains to Adnkronos Salute – said to himself: let’s see how these vaccines are working. We conducted the analysis with a little fear. We were trembling at the idea that they could not work. . But with great relief, the preliminary data we observed are really very positive. The results of the experimental studies had to be verified on the general population and that’s what we did: we took the vaccinated people from the province of Pescara and all the adult resident population of 300 thousand people). At the time we conducted the study, 62 thousand were vaccinated. Having had to exclude the vaccinated in April for the technical time required for seroconversion, the data of 37 thousand people were examined and compared with those of the unvaccinated “. Among the people subjected to shield injection – with Pfizer, Moderna and AstraZeneca – the decline in infections and Covid disease, but also in mortality i (-91%, but it is an unstable estimate). In practice, we have recorded only one death “.