{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T08:58:38Z","timestamp":1768899518601,"version":"3.49.0"},"reference-count":27,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,5,30]],"date-time":"2021-05-30T00:00:00Z","timestamp":1622332800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Background: During the COVID-19 pandemic, more than ever, optimal influenza vaccination coverage among healthcare workers (HCWs) is crucial to avoid absenteeism and disruption of health services, as well as in-hospital influenza outbreaks. The aim of this study is to analyze the 2020 influenza vaccination campaign, comparing it with the previous year\u2019s in a research and teaching hospital in Northern Italy. Methods: adopting an approach based on combined strategies, three interventions were deployed: a promotional and educational campaign, vaccination delivery through both ad hoc and on-site ambulatories, and a gaming strategy. Personal data and professional categories were collected and analyzed using univariate logistic regression. Vaccinated HCWs were asked to fill in a questionnaire to describe their reasons for vaccination adherence. Results: the vaccination coverage rate (VCR) was 43.1%, compared to 21.5% in 2019. The highest increase was registered among administrative staff (308.3%), while physicians represent the most vaccinated category (n = 600). Moreover, residents (prevalence ratio (PR): 1.12; 95% CI 1.04\u20131.20), as well as intensive care (PR: 1.44; 95% CI: 1.24\u20131.69) and newborn workers (PR: 1.41; 95% CI: 1.20\u20131.65) were, respectively, the categories most frequently vaccinated for the first time. Conclusion: the significant increase in vaccination coverage rate confirms the suitability of the combined strategy of delivering the flu vaccination campaign and represents a first step towards reaching WHO recommended vaccination rates.<\/jats:p>","DOI":"10.3390\/ijerph18115874","type":"journal-article","created":{"date-parts":[[2021,5,31]],"date-time":"2021-05-31T00:22:15Z","timestamp":1622420535000},"page":"5874","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Influenza Vaccination Campaign during the COVID-19 Pandemic: The Experience of a Research and Teaching Hospital in Milan"],"prefix":"10.3390","volume":"18","author":[{"given":"Pier Mario","family":"Perrone","sequence":"first","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giacomo","family":"Biganzoli","sequence":"additional","affiliation":[{"name":"Pharmacogenomics & Precision Therapeutics Master Degree, University of Milan, 20142 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maurizio","family":"Lecce","sequence":"additional","affiliation":[{"name":"Quality Unit Fondazione IRCCS Ca\u2019 Granda OMP, 20122 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9739-2172","authenticated-orcid":false,"given":"Emanuela Maria","family":"Campagnoli","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ambra","family":"Castrofino","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4183-9155","authenticated-orcid":false,"given":"Andrea","family":"Cinnirella","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Federica","family":"Fornaro","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claudia","family":"Gallana","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0702-7762","authenticated-orcid":false,"given":"Francesca Maria","family":"Grosso","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8999-2496","authenticated-orcid":false,"given":"Manuel","family":"Maffeo","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4454-8436","authenticated-orcid":false,"given":"Viktoriia","family":"Shishmintseva","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5681-3455","authenticated-orcid":false,"given":"Elena","family":"Pariani","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1716-6624","authenticated-orcid":false,"given":"Silvana","family":"Castaldi","sequence":"additional","affiliation":[{"name":"Department Biomedical Sciences for Health, Postgraduate School in Public Health, University of Milano, 20136 Milan, Italy"},{"name":"Quality Unit Fondazione IRCCS Ca\u2019 Granda OMP, 20122 Milan, 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