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Initial impact of SARS-Cov-2 vaccination on healthcare workers in Italy- Update on the 28th of March 2021.
Mateo-Urdiales, Alberto; Del Manso, Martina; Andrianou, Xanthi; Spuri, Matteo; D'Ancona, Fortunato; Filia, Antonietta; Rota, Maria Cristina; Petrone, Daniele; Vescio, Maria Fenicia; Riccardo, Flavia; Bella, Antonino; Pezzotti, Patrizio; Fabiani, Massimo.
  • Mateo-Urdiales A; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy; European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden.
  • Del Manso M; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy; European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden.
  • Andrianou X; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy; Cyprus International Institute for Environmental and Public Health, Cyprus University of Technology, Limassol, Cyprus.
  • Spuri M; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy; Department of Statistics, La Sapienza University, Rome, Italy.
  • D'Ancona F; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
  • Filia A; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
  • Rota MC; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
  • Petrone D; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy; Department of Statistics, La Sapienza University, Rome, Italy.
  • Vescio MF; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
  • Riccardo F; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
  • Bella A; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
  • Pezzotti P; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy. Electronic address: Patrizio.pezzotti@iss.it.
  • Fabiani M; Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Vaccine ; 39(34): 4788-4792, 2021 08 09.
Article in English | MEDLINE | ID: covidwho-1301034
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.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Vaccines / COVID-19 Type of study: Experimental Studies / Observational study Topics: Vaccines Limits: Humans Country/Region as subject: Europa Language: English Journal: Vaccine Year: 2021 Document Type: Article Affiliation country: J.vaccine.2021.07.003

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Vaccines / COVID-19 Type of study: Experimental Studies / Observational study Topics: Vaccines Limits: Humans Country/Region as subject: Europa Language: English Journal: Vaccine Year: 2021 Document Type: Article Affiliation country: J.vaccine.2021.07.003