In Italy, the COVID-19 vaccination campaign started in December 2020 with the vaccination of healthcare workers (HCW). To analyse the real-life impact that vaccination is having on this population group, we measured the association between week of diagnosis and HCW status using log-binomial regression. By the week 22–28 March, we observed a 74% reduction (PPR 0.26; 95% CI 0.22–0.29) in the proportion of cases reported as HCW and 81% reduction in the proportion of symptomatic cases reported as HCW, compared with the week with the lowest proportion of cases among HCWs prior to the vaccination campaign (31 August-7 September). The reduction, both in relative and absolute terms, of COVID-19 cases in HCWs that started around 30 days after the start of the vaccination campaign suggest that COVID-19 vaccines are being effective in preventing infection in this group.
Initial impact of SARS-Cov-2 vaccination on healthcare workers in Italy. Update on the 28th of march 2021 / Mateo-Urdiales, A.; Del Manso, M.; Andrianou, X.; Spuri, M.; D'Ancona, F.; Filia, A.; Rota, M. C.; Petrone, D.; Vescio, M. F.; Riccardo, F.; Bella, A.; Pezzotti, P.; Fabiani, M.. - In: VACCINE. - ISSN 0264-410X. - 39:34(2021), pp. 4788-4792. [10.1016/j.vaccine.2021.07.003]
Initial impact of SARS-Cov-2 vaccination on healthcare workers in Italy. Update on the 28th of march 2021
Del Manso M.;Spuri M.;D'Ancona F.;Petrone D.;Riccardo F.;Fabiani M.
2021
Abstract
In Italy, the COVID-19 vaccination campaign started in December 2020 with the vaccination of healthcare workers (HCW). To analyse the real-life impact that vaccination is having on this population group, we measured the association between week of diagnosis and HCW status using log-binomial regression. By the week 22–28 March, we observed a 74% reduction (PPR 0.26; 95% CI 0.22–0.29) in the proportion of cases reported as HCW and 81% reduction in the proportion of symptomatic cases reported as HCW, compared with the week with the lowest proportion of cases among HCWs prior to the vaccination campaign (31 August-7 September). The reduction, both in relative and absolute terms, of COVID-19 cases in HCWs that started around 30 days after the start of the vaccination campaign suggest that COVID-19 vaccines are being effective in preventing infection in this group.| File | Dimensione | Formato | |
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