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Estimating averted COVID-19 cases, hospitalisations, intensive care unit admissions and deaths by COVID-19 vaccination, Italy, January-September 2021. 2021
Chiara Sacco, and
Alberto Mateo-Urdiales, and
Daniele Petrone, and
Matteo Spuri, and
Massimo Fabiani, and
Maria Fenicia Vescio, and
Marco Bressi, and
Flavia Riccardo, and
Martina Del Manso, and
Antonino Bella, and
Patrizio Pezzotti, and
Department of Infectious Diseases, Istituto Superiore di Sanità , Rome, Italy.
We assessed the impact of COVID-19 vaccination in Italy, by estimating numbers of averted COVID-19 cases, hospitalisations, ICU admissions and deaths between January and September 2021, by age group and geographical macro areas. Timing and speed of vaccination programme implementation varied slightly between geographical areas, particularly for older adults. We estimated that 445,193 (17% of expected; range: 331,059-616,054) cases, 79,152 (32%; range: 53,209-148,756) hospitalisations, 9,839 ICU admissions (29%; range: 6,434-16,276) and 22,067 (38%; range: 13,571-48,026) deaths were prevented by vaccination.
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