{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T19:04:55Z","timestamp":1776711895621,"version":"3.51.2"},"reference-count":71,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,5,26]],"date-time":"2022-05-26T00:00:00Z","timestamp":1653523200000},"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: Healthcare workers (HCWs) are a historical key target of influenza vaccination programs. For the 2021\u20132022 season, WHO considered the coadministration of a flu and a COVID-19 vaccine as acceptable and recommended it to allow for higher uptake of both vaccines. The aim of this study was to investigate demographic and occupational features of vaccinated HCWs, reasons behind flu vaccine acceptance and a possible effect of the coadministration of a COVID-19 vaccine, in order to potentially draw general conclusions on HCWs\u2019 attitude towards flu vaccination and inform further strategies for consistent improvement of vaccine acceptance. Methods: a promotional and educational campaign, a gaming strategy, and vaccination delivery through both a large central hub and on-site ambulatories, were the implemented strategies. In the central hub, the flu\/COVID-19 vaccine coadministration was offered. Statistical descriptive analysis, multiple correspondence analysis (MCA) and logistic regression models were performed. Results: 2381 HCWs received the flu vaccine, prompting a vaccination coverage rate (VCR) of 52.0% versus 43.1% in the 2020\u20132021 campaign. Furthermore, 50.6% vaccinated HCWs belonged to the 18\u201339 years-old age group. The most expressed reasons for vaccine uptake were \u201cVaccination is the most effective strategy of prevention\u201d (n = 1928, 81.0%), \u201cAs HCW it\u2019s my duty to get vaccinated to protect my patients\u201d (n = 766, 32.2%), and the group of COVID-19-related reasons (n = 586, 24.6%). In addition, 23.3% HCWs received the flu vaccine in the current campaign but not in the previous one (newly vaccinated) and the flu\/COVID-19 vaccine coadministration was more frequent in this group. A total of 51.0% HCWs were hesitant towards the coadministration, while residents and nurses showed the highest propensity to receive it. Conclusions: in the second year of the COVID-19 pandemic, the Fondazione\u2019s influenza VCR continued to increase, with the greatest participation among HCWs aged 18\u201339 years. A potential propelling role of the COVID-19 vaccine coadministration was highlighted.<\/jats:p>","DOI":"10.3390\/ijerph19116500","type":"journal-article","created":{"date-parts":[[2022,5,27]],"date-time":"2022-05-27T07:05:07Z","timestamp":1653635107000},"page":"6500","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["COVID-19 and Influenza Vaccination Campaign in a Research and University Hospital in Milan, Italy"],"prefix":"10.3390","volume":"19","author":[{"given":"Maurizio","family":"Lecce","sequence":"first","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giacomo","family":"Biganzoli","sequence":"additional","affiliation":[{"name":"Unit of Medical Statistics, Biometry and Epidemiology, Department of Biomedical and Clinical Sciences (DIBIC) \u201cL. Sacco\u201d & DSRC, Luigi Sacco University Hospital, 20157 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luca","family":"Agnello","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ignazio","family":"Belisario","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giovanni","family":"Cicconi","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marilena","family":"D\u2019Amico","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6463-0640","authenticated-orcid":false,"given":"Francesca","family":"De Giorgi","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Angelo","family":"Ferilli","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gaia","family":"Ferraguzzi","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabio","family":"Guzzardi","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6191-5544","authenticated-orcid":false,"given":"Danilo","family":"Lanzillotti","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roberta","family":"Lattanzio","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7543-9662","authenticated-orcid":false,"given":"Chiara","family":"Marrocu","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Emanuela","family":"Noto","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sara","family":"Piccinelli","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7540-5833","authenticated-orcid":false,"given":"Noemi","family":"Sabatelli","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6019-7296","authenticated-orcid":false,"given":"Sheila","family":"Santisteban","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4983-6725","authenticated-orcid":false,"given":"Sudwaric","family":"Sharma","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Livia","family":"Tognaccini","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 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 of Biomedical Sciences for Health, Postgraduate School of Public Health, University of Milan, 20136 Milan, Italy"},{"name":"Fondazione IRCCS Ca\u2019 Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"697","DOI":"10.1016\/S0140-6736(17)30129-0","article-title":"Influenza","volume":"390","author":"Paules","year":"2017","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1285","DOI":"10.1016\/S0140-6736(17)33293-2","article-title":"Global Seasonal Influenza-associated Mortality Collaborator Network. Estimates of global seasonal influenza-associated respiratory mortality: A modelling study","volume":"391","author":"Iuliano","year":"2018","journal-title":"Lancet"},{"key":"ref_3","unstructured":"European Centre for Disease Prevention and Control (ECDC) (2022, March 10). Factsheet about Seasonal Influenza. Available online: https:\/\/www.ecdc.europa.eu\/en\/seasonal-influenza\/facts\/factsheet."},{"key":"ref_4","unstructured":"World Health Organization (WHO) (2022, March 10). Influenza (Seasonal). Available online: https:\/\/www.who.int\/news-room\/fact-sheets\/detail\/influenza-(seasonal)."},{"key":"ref_5","unstructured":"(2022, March 10). Ministero della Salute\u2014Prevenzione e Controllo dell\u2019Influenza: Raccomandazioni per la Stagione 2021\u20132022, Available online: https:\/\/www.trovanorme.salute.gov.it\/norme\/renderNormsanPdf?anno=2021&codLeg=79647&parte=1%20&serie=null."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1772","DOI":"10.1080\/21645515.2019.1706931","article-title":"Elderly people: Propensity to be vaccinated for seasonal influenza in Italy","volume":"16","author":"Marano","year":"2020","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_7","unstructured":"(2022, March 10). Center for Disease Control and Prevention (CDC)\u2014Overview of Influenza Vaccination among Health Care Personnel, Available online: https:\/\/www.cdc.gov\/flu\/toolkit\/long-term-care\/why.htm."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/S0140-6736(99)05190-9","article-title":"Effects of influenza vaccination of health-care workers on mortality of elderly people in long-term care: A randomised controlled trial","volume":"355","author":"Carman","year":"2000","journal-title":"Lancet"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Lorenc, T., Marshall, D., Wright, K., Sutcliffe, K., and Sowden, A. (2017). Seasonal influenza vaccination of healthcare workers: Systematic review of qualitative evidence. BMC Health Serv. Res., 17.","DOI":"10.1186\/s12913-017-2703-4"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1016\/j.vaccine.2017.12.019","article-title":"How close are countries of the WHO European Region to achieving the goal of vaccinating 75% of key risk groups against influenza? Results from national surveys on seasonal influenza vaccination programmes, 2008\/2009 to 2014\/2015","volume":"36","author":"Jorgensen","year":"2018","journal-title":"Vaccine"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"728","DOI":"10.4161\/hv.7.7.15413","article-title":"Prevalence of influenza vaccination among nurses and ancillary workers in Italy: Systematic review and meta analysis","volume":"7","author":"Mannocci","year":"2011","journal-title":"Hum. Vaccines"},{"key":"ref_12","first-page":"E12","article-title":"Vaccination coverage in healthcare workers: A multicenter cross-sectional study in Italy","volume":"60","author":"Genovese","year":"2019","journal-title":"J. Prev. Med. Hyg."},{"key":"ref_13","unstructured":"European Centre for Disease Prevention and Control (2017). Seasonal Influenza Vaccination in Europe. Vaccination Recommendations and Coverage Rates in the EU Member States for Eight Influenza Seasons: 2007\u20132008 to 2014\u20132015, ECDC."},{"key":"ref_14","unstructured":"European Centre for Disease Prevention and Control (2018). Seasonal Influenza Vaccination and Antiviral Use in EU\/EEA Member States\u2014Overview of Vaccine Recommendations for 2017\u20132018 and Vaccination Coverage Rates for 2015\u20132016 and 2016\u20132017 Influenza Seasons, ECDC."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1205","DOI":"10.1111\/jep.13295","article-title":"A new strategy to promote flu vaccination among health care workers: Molinette Hospital\u2019s experience","volume":"26","author":"Bert","year":"2020","journal-title":"J. Eval. Clin. Pract."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1080\/21645515.2019.1632684","article-title":"Seasonal influenza vaccination among health-care workers: The impact of different tailored programs in four University hospitals in Rome","volume":"16","author":"Tognetto","year":"2020","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Brunelli, L., Antinolfi, F., Malacarne, F., Cocconi, R., and Brusaferro, S. (2020). A Wide Range of Strategies to Cope with Healthcare Workers\u2019 Vaccine Hesitancy in A North-Eastern Italian Region: Are They Enough?. Healthcare, 9.","DOI":"10.3390\/healthcare9010004"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"4161","DOI":"10.1016\/j.vaccine.2015.04.036","article-title":"Vaccine hesitancy: Definition, scope and determinants","volume":"33","author":"MacDonald","year":"2015","journal-title":"Vaccine"},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Arghittu, A., Dettori, M., Azara, A., Gentili, D., Serra, A., Contu, B., and Castiglia, P. (2020). Flu Vaccination Attitudes, Behaviours, and Knowledge among Health Workers. Int. J. Environ. Res. Public Health, 17.","DOI":"10.3390\/ijerph17093185"},{"key":"ref_20","unstructured":"Guillari, A., Polito, F., Pucciarelli, G., Serra, N., Gargiulo, G., Esposito, M.R., Botti, S., Rea, T., and Simeone, S. (2021). Influenza vaccination and healthcare workers: Barriers and predisposing factors. Acta Biomed., 92."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"772","DOI":"10.1080\/21645515.2017.1348442","article-title":"Influenza vaccination in healthcare workers: A comprehensive critical appraisal of the literature","volume":"14","author":"Dini","year":"2018","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Maffeo, M., Luconi, E., Castrofino, A., Campagnoli, E.M., Cinnirella, A., Fornaro, F., Gallana, C., Perrone, P.M., Shishmintseva, V., and Pariani, E. (2020). 2019 Influenza Vaccination Campaign in an Italian Research and Teaching Hospital: Analysis of the Reasons for Its Failure. Int. J. Environ. Res. Public Health, 17.","DOI":"10.3390\/ijerph17113881"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1007\/978-3-030-85113-2_6","article-title":"First Wave of COVID-19 Pandemic in Italy: Data and Evidence","volume":"1353","author":"Bezzini","year":"2021","journal-title":"Adv. Exp. Med. Biol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"020506","DOI":"10.7189\/jogh.10.020506","article-title":"Early epidemiological indicators, outcomes, and interventions of COVID-19 pandemic: A systematic review","volume":"10","author":"Patel","year":"2020","journal-title":"J. Glob. Health"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Perrone, P.M., Biganzoli, G., Lecce, M., Campagnoli, E.M., Castrofino, A., Cinnirella, A., Fornaro, F., Gallana, C., Grosso, F.M., and Maffeo, M. (2021). Influenza Vaccination Campaign during the COVID-19 Pandemic: The Experience of a Research and Teaching Hospital in Milan. Int. J. Environ. Res. Public Health, 18.","DOI":"10.3390\/ijerph18115874"},{"key":"ref_26","unstructured":"(2022, March 10). European Medicines Agency (EMA)\u2014Comirnaty. Available online: https:\/\/www.ema.europa.eu\/en\/medicines\/human\/EPAR\/comirnaty."},{"key":"ref_27","unstructured":"(2022, March 10). European Medicines Agency (EMA)\u2014Spikevax. Available online: https:\/\/www.ema.europa.eu\/en\/medicines\/human\/EPAR\/spikevax."},{"key":"ref_28","unstructured":"World Health Organization (2022, March 10). Coadministration of Seasonal Inactivated Influenza and COVID-19 Vaccines: Interim Guidance, 21 October 2021, Available online: https:\/\/apps.who.int\/iris\/handle\/10665\/346897."},{"key":"ref_29","unstructured":"Ministero della Salute (2022, March 10). Intervallo Temporale tra la Somministrazione dei Vaccini Anti-SARS-CoV-2\/COVID-19 e Altri Vaccini, Available online: https:\/\/www.trovanorme.salute.gov.it\/norme\/renderNormsanPdf?anno=2021&codLeg=83013&parte=1%20&serie=null."},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Gerussi, V., Peghin, M., Palese, A., Bressan, V., Visintini, E., Bontempo, G., Graziano, E., De Martino, M., Isola, M., and Tascini, C. (2021). Vaccine Hesitancy among Italian Patients Recovered from COVID-19 Infection towards Influenza and Sars-Cov-2 Vaccination. Vaccines, 9.","DOI":"10.3390\/vaccines9020172"},{"key":"ref_31","unstructured":"Gazzetta Ufficiale della Repubblica Italiana (2022, March 10). Decreto-Legge 1 Aprile 2021, n. 44. Available online: https:\/\/www.gazzettaufficiale.it\/eli\/id\/2021\/04\/01\/21G00056\/sg."},{"key":"ref_32","unstructured":"Gazzetta Ufficiale della Repubblica Italiana (2022, March 10). Decreto-Legge 26 Novembre 2021, n. 172. Available online: https:\/\/www.gazzettaufficiale.it\/eli\/id\/2021\/11\/26\/21G00211\/sg."},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Scardina, G., Ceccarelli, L., Casigliani, V., Mazzilli, S., Napoletano, M., Padovan, M., Petillo, A., Sironi, D., Brilli, C., and Gattini, V. (2021). Evaluation of Flu Vaccination Coverage among Healthcare Workers during a 3 Years\u2019 Study Period and Attitude towards Influenza and Potential COVID-19 Vaccination in the Context of the Pandemic. Vaccines, 9.","DOI":"10.3390\/vaccines9070769"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1978795","DOI":"10.1080\/21645515.2021.1978795","article-title":"How has COVID-19 pandemic changed flu vaccination attitudes among an Italian cancer center healthcare workers?","volume":"18","author":"Bertoni","year":"2022","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Di Pumpo, M., Vetrugno, G., Pascucci, D., Carini, E., Beccia, V., Sguera, A., Zega, M., Pani, M., Cambieri, A., and Nurchis, M.C. (2021). Is COVID-19 a Real Incentive for Flu Vaccination? Let the Numbers Speak for Themselves. Vaccines, 9.","DOI":"10.3390\/vaccines9030276"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"St\u00f6ckeler, A.M., Schuster, P., Zimmermann, M., and Hanses, F. (2021). Influenza vaccination coverage among emergency department personnel is associated with perception of vaccination and side effects, vaccination availability on site and the COVID-19 pandemic. PLoS ONE, 16.","DOI":"10.1371\/journal.pone.0260213"},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Youssef, D., Berry, A., Youssef, J., and Abou-Abbas, L. (2022). Vaccination against influenza among Lebanese health care workers in the era of coronavirus disease 2019. BMC Public Health, 22.","DOI":"10.1186\/s12889-022-12501-9"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"7049","DOI":"10.1016\/j.vaccine.2020.09.021","article-title":"Intention of nurses to accept coronavirus disease 2019 vaccination and change of intention to accept seasonal influenza vaccination during the coronavirus disease 2019 pandemic: A cross-sectional survey","volume":"38","author":"Wang","year":"2020","journal-title":"Vaccine"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1016\/j.jhin.2021.02.024","article-title":"Healthcare staff perceptions towards influenza and potential COVID-19 vaccination in the 2020 pandemic context","volume":"112","author":"Robbins","year":"2021","journal-title":"J. Hosp. Infect"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"3113","DOI":"10.1080\/21645515.2021.1911212","article-title":"Demand and motivation for influenza vaccination among healthcare workers before and during the COVID-19 era: A cross-sectional survey","volume":"17","year":"2021","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"1775","DOI":"10.1016\/j.vaccine.2022.02.020","article-title":"Exploring vaccination coverage and attitudes of health care workers towards influenza vaccine in Cyprus","volume":"40","author":"Papageorgiou","year":"2022","journal-title":"Vaccine"},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Kong, G., Lim, N.A., Chin, Y.H., Ng, Y.P.M., and Amin, Z. (2022). Effect of COVID-19 Pandemic on Influenza Vaccination Intention: A Meta-Analysis and Systematic Review. Vaccines, 10.","DOI":"10.3390\/vaccines10040606"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"325","DOI":"10.1007\/s10654-020-00634-3","article-title":"Vaccine confidence in the time of COVID-19","volume":"35","author":"Harrison","year":"2020","journal-title":"Eur. J. Epidemiol."},{"key":"ref_44","unstructured":"Gazzetta Ufficiale della Repubblica Italiana (2022, March 10). Legge 24 Aprile 2020, n. 27. Available online: https:\/\/www.gazzettaufficiale.it\/eli\/id\/2020\/04\/29\/20G00045\/sg."},{"key":"ref_45","doi-asserted-by":"crossref","unstructured":"Shosha, S.H., Ajlan, D.I., and Al-Ghatam, R. (2022). Does influenza vaccination help reduce incidence of COVID-19 infection among hospital employees?. Medicine, 101.","DOI":"10.1097\/MD.0000000000028479"},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Di Giuseppe, G., Pelullo, C.P., Paolantonio, A., Della Polla, G., and Pavia, M. (2021). Healthcare Workers\u2019 Willingness to Receive Influenza Vaccination in the Context of the COVID-19 Pandemic: A Survey in Southern Italy. Vaccines, 9.","DOI":"10.3390\/vaccines9070766"},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Durando, P., Alicino, C., Dini, G., Barberis, I., Bagnasco, A.M., Iudici, R., Zanini, M., Martini, M., Toletone, A., and Paganino, C. (2016). Determinants of adherence to seasonal influenza vaccination among healthcare workers from an Italian region: Results from a cross-sectional study. BMJ Open, 6.","DOI":"10.1136\/bmjopen-2015-010779"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"27","DOI":"10.7175\/rhc.v1i1.15","article-title":"Prevalence of influenza vaccination among physicians and related enhancing and preventing factors in Italy","volume":"1","author":"Mannocci","year":"2010","journal-title":"Rev. Health Care"},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Elizondo-Alzola, U., Carrasco, M.G., Pin\u00f3s, L., Picchio, C.A., Rius, C., and Diez, E. (2021). Vaccine hesitancy among paediatric nurses: Prevalence and associated factors. PLoS ONE, 16.","DOI":"10.1371\/journal.pone.0251735"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1086\/524322","article-title":"Influenza vaccination among medical residents in a teaching hospital","volume":"29","author":"Bishburg","year":"2008","journal-title":"Infect Control Hosp. Epidemiol."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"867","DOI":"10.1086\/502510","article-title":"Influenza vaccine: Immunization rates, knowledge, and attitudes of resident physicians in an urban teaching hospital","volume":"26","author":"Wodi","year":"2005","journal-title":"Infect Control Hosp. Epidemiol."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"1204","DOI":"10.4161\/hv.28081","article-title":"Influenza vaccination coverage among medical residents: An Italian multicenter survey","volume":"10","author":"Costantino","year":"2014","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1016\/j.ajic.2005.06.003","article-title":"Influenza immunization of medical residents: Knowledge, attitudes, and behaviors","volume":"33","author":"Toy","year":"2005","journal-title":"Am. J. Infect Control"},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"967","DOI":"10.1080\/21645515.2018.1556076","article-title":"A campaign aimed at increasing seasonal influenza vaccination coverage among post graduate medical residents in an Italian teaching hospital","volume":"15","author":"Barbara","year":"2019","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"8113","DOI":"10.1016\/j.vaccine.2011.08.033","article-title":"Are medical residents a \u201ccore group\u201d for future improvement of influenza vaccination coverage in health-care workers? A study among medical residents at the University Hospital of Palermo (Sicily)","volume":"29","author":"Amodio","year":"2011","journal-title":"Vaccine"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1080\/21645515.2021.2011652","article-title":"Acceptability of the third dose of anti-SARS-CoV-2 vaccine co-administered with influenza vaccine: Preliminary data in a sample of Italian HCWs","volume":"18","author":"Stefanizzi","year":"2022","journal-title":"Hum. Vaccines Immunother."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"2267","DOI":"10.1016\/j.vaccine.2015.03.028","article-title":"Accounting for personal and professional choices for pandemic influenza vaccination amongst English healthcare workers","volume":"33","author":"Marcu","year":"2015","journal-title":"Vaccine"},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"745","DOI":"10.4161\/hv.5.11.9438","article-title":"Simultaneous administration of vaccines in immunization protocols: An audit in healthcare workers in the Puglia region of Italy","volume":"5","author":"Tafuri","year":"2009","journal-title":"Hum. Vaccines"},{"key":"ref_59","first-page":"35","article-title":"Effectiveness of an educational intervention on seasonal influenza vaccination campaign adherence among healthcare workers of the Palermo University Hospital, Italy","volume":"31","author":"Costantino","year":"2019","journal-title":"Ann Ig"},{"key":"ref_60","doi-asserted-by":"crossref","unstructured":"Van Hooste, W.L.C., and Bekaert, M. (2019). To Be or Not to Be Vaccinated? The Ethical Aspects of Influenza Vaccination among Healthcare Workers. Int. J. Environ. Res. Public Health, 16.","DOI":"10.3390\/ijerph16203981"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"303","DOI":"10.26719\/2017.23.4.303","article-title":"Improving influenza vaccination rates of healthcare workers: A multipronged approach in qatar","volume":"23","author":"Mustafa","year":"2017","journal-title":"East. Mediterr Health J."},{"key":"ref_62","unstructured":"World Health Organization Regional Office for Europe (2015). Tailoring Immunization Programmes for Seasonal Influenza (TIP FLU) A Guide for Increasing Health Care Workers\u2019 Uptake of Seasonal Influenza Vaccination, WHO Regional Office for Europe."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1007\/s15010-020-01555-9","article-title":"Increasing influenza vaccination coverage in healthcare workers: A review on campaign strategies and their effect","volume":"49","author":"Schumacher","year":"2021","journal-title":"Infection"},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"310","DOI":"10.1016\/S0140-6736(11)61156-2","article-title":"Time to Mandate Influenza Vaccination in Health-Care Workers","volume":"378","author":"Caplan","year":"2011","journal-title":"Lancet"},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"901","DOI":"10.1016\/j.vaccine.2020.12.061","article-title":"Healthcare Workers\u2019 (HCWs) attitudes towards mandatory influenza vaccination: A systematic review and meta-analysis","volume":"39","author":"Gualano","year":"2021","journal-title":"Vaccine"},{"key":"ref_66","unstructured":"(2022, March 10). Ministero della Salute\u2014Coperture Vaccinali Anti COVID-19\u2014Operatori Sanitari. Available online: https:\/\/github.com\/italia\/covid19-opendata-vaccini\/."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"4788","DOI":"10.1016\/j.vaccine.2021.07.003","article-title":"Initial impact of SARS-Cov-2 vaccination on healthcare workers in Italy- Update on the 28th of March 2021","volume":"39","author":"Andrianou","year":"2021","journal-title":"Vaccine"},{"key":"ref_68","first-page":"453","article-title":"COVID-19 impact and vaccine effectiveness among healthcare workers of a large University Hospital in Lombardy, Italy","volume":"112","author":"Mendola","year":"2021","journal-title":"Med. Lav."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1016\/j.jhin.2021.03.016","article-title":"Rapid decrease of SARS-CoV-2 circulation in a large Italian hospital six weeks after the start of the immunization program","volume":"112","author":"Stefanizzi","year":"2021","journal-title":"J. Hosp. Infect"},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"20979","DOI":"10.2807\/1560-7917.ES2014.19.48.20979","article-title":"Overcoming healthcare workers vaccine refusal\u2014competition between egoism and altruism","volume":"19","author":"Betsch","year":"2014","journal-title":"Eurosurveillance"},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"411","DOI":"10.1001\/jama.2021.23392","article-title":"Preparing Hospitals\u2019 Medical Oxygen Delivery Systems for a Respiratory \u201cTwindemic\u201d","volume":"327","author":"Suran","year":"2022","journal-title":"JAMA"}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/19\/11\/6500\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T23:19:18Z","timestamp":1760138358000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/19\/11\/6500"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,5,26]]},"references-count":71,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2022,6]]}},"alternative-id":["ijerph19116500"],"URL":"https:\/\/doi.org\/10.3390\/ijerph19116500","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,5,26]]}}}