Original article
Vol. 151 No. 1920 (2021)
Parents’ intent to vaccinate against influenza during the COVID-19 pandemic in two regions in Switzerland
Summary
AIMS OF THE STUDY
The COVID-19 pandemic is likely to overlap with the seasonal influenza epidemic, increasing the risk of overextending the health system capacity in Switzerland. Influenza vaccine uptake has remained low in most countries, including Switzerland. The aim of the study was to determine parents’ intentions towards influenza vaccination of their children, as well as themselves, and to assess regional differences.
METHODS
Parents presenting to four paediatric emergency departments (Zurich, Bern, Bellinzona, Geneva) were asked to complete an online survey during and after the first lockdown of the COVID-19 pandemic (April to June 2020). The anonymised survey included demographic information, vaccination history and intentions to vaccinate against influenza, as well as attitudes towards future vaccination against COVID-19.
RESULTS
The majority of children (92%; 602/654) were up-to-date on their vaccination schedule. In 2019/2020, 7.2% (47/654) were vaccinated against influenza. Children with chronic illnesses were more frequently vaccinated than healthy children (19.2% vs 5.6%; p = 0.002). For the coming winter season, 111 (17%) parents stated they plan to vaccinate their children against influenza, more than double the rate from last year, and 383 (59.2%) parents suggested they will vaccinate against COVID-19 once a vaccine is available. Regional differences between “German” and “Latin” Switzerland were found for parents’ intent to have their children vaccinated against influenza next season (Zurich and Bern 14.3%, Bellinzona and Geneva 27.2%, p <0.001), but not for a hypothetical vaccination against COVID-19 (Zurich and Bern 59.1%, Bellinzona and Geneva 59.7%, p = 0.894).
CONCLUSIONS
The COVID-19 pandemic resulted in a substantial increase of parents’ intention to vaccinate their children against influenza, especially in hard-hit “Latin” Switzerland. The Swiss government and public health organisations can leverage these regional results to promote influenza vaccination among children for the coming seasons.
References
- World Health Organization [Internet]. Influenza (seasonal); November 2018 [cited 2021 Mar 3]. Available from: https://www.who.int/news-room/fact-sheeets/detail/influenza-(seasonal).
- Grech V Borg M. Influenza vaccination in the COVID-19 era. Early Hum Dev. 2020;148:105116. doi:.https://doi.org/10.1016/j.earlhumdev.2020.105116
- Goldman RD McGregor S Marneni SR Katsuta T Griffiths MA Hall JE International COVID-19 Parental Attitude Study (COVIPAS) Group. Willingness to Vaccinate Children against Influenza after the Coronavirus Disease 2019 Pandemic. J Pediatr. 2021;228:87–93.e2. doi:.https://doi.org/10.1016/j.jpeds.2020.08.005
- Zürcher K Zwahlen M Berlin C Egger M Fenner L. Trends in influenza vaccination uptake in Switzerland: Swiss Health Survey 2007 and 2012. Swiss Med Wkly. 2019;149:w14705. doi:.https://doi.org/10.4414/smw.2019.14705
- Jefferson T Rivetti A Di Pietrantonj C Demicheli V Ferroni E. Vaccines for preventing influenza in healthy children. Cochrane Database Syst Rev. 2012;(8):CD004879. doi:.https://doi.org/10.1002/14651858.CD004879.pub4
- Federal Office of Public Health FOPH [Internet] Covid-19 in Switzerland. [cited 2021 Mar 3]. Available from: https://covid-19-schweiz.bagapps.ch/de-1.html
- Federal Office of Public Health FOPH [Internet]. Epidemiologische Zwischenbilanz zum neuen Coronavirus in der Schweiz und im Fürstentum Liechtenstein. [cited 2020 Oct 10]. Available from: https://www.bag.admin.ch/bag/de/home/krankheiten/ausbrueche-epidemien-pandemien/aktuelle-ausbrueche-epidemien/novel-cov/situation-schweiz-und-international.html#2030838475.
- Scire J Nadeau S Vaughan T Brupbacher G Fuchs S Sommer J Reproductive number of the COVID-19 epidemic in Switzerland with a focus on the Cantons of Basel-Stadt and Basel-Landschaft. Swiss Med Wkly. 2020;150:w20271. doi:.https://doi.org/10.4414/smw.2020.20271
- Srf.ch. [Internet]. [cited 2021 Mar 3]. Available from: https://www.srf.ch/news/schweiz/aktuelle-impfkampagne-wegen-corona-bag-empfiehlt-grippeimpfung-fuer-kinder-und-babys
- Olsen SJ Azziz-Baumgartner E Budd AP Brammer L Sullivan S Pineda RF Decreased influenza activity during the COVID-19 pandemic – United States, Australia, Chile, and South Africa. MMWR Morb Mortal Wkly Rep. 2020;69(37):1305–9. doi:.https://doi.org/10.15585/mmwr.mm6937a6
- Bish A Yardley L Nicoll A Michie S. Factors associated with uptake of vaccination against pandemic influenza: a systematic review. Vaccine. 2011;29(38):6472–84. doi:.https://doi.org/10.1016/j.vaccine.2011.06.107
- Goldman RD Marneni SR Seiler M Brown JC Klein EJ Cotanda CP International COVID-19 Parental Attitude Study (COVIPAS) Group. Caregivers’ Willingness to Accept Expedited Vaccine Research During the COVID-19 Pandemic: A Cross-sectional Survey. Clin Ther. 2020;42(11):2124–33. doi:.https://doi.org/10.1016/j.clinthera.2020.09.012
- Goldman RD Yan TD Seiler M Parra Cotanda C Brown JC Klein EJ International COVID-19 Parental Attitude Study (COVIPAS) Group. Caregiver willingness to vaccinate their children against COVID-19: Cross sectional survey. Vaccine. 2020;38(48):7668–73; Epub. doi:.https://doi.org/10.1016/j.vaccine.2020.09.084
- Moser DA Glaus J Frangou S Schechter DS. Years of life lost due to the psychosocial consequences of COVID-19 mitigation strategies based on Swiss data. Eur Psychiatry. 2020;63(1):e58. doi:.https://doi.org/10.1192/j.eurpsy.2020.56
- Thelocal.ch. [Internet]. EXPLAINED: Why Swiss doctors want to vaccinate children against the flu this year? [cited 2021 Mar 3]. Available from: https://www.thelocal.ch/20200828/explained-why-swiss-doctors-want-to-vaccinate-children-against-the-flu-this-year
- Welcome.org. [Internet]. Wellcome Global monitor 2018. [cited 2021 Mar 3]. Available from: https://wellcome.org/reports/wellcome-global-monitor/2018
- Brunner I Schmedders K Wolfensberger A Schreiber PW Kuster SP. The economic and public health impact of influenza vaccinations: contributions of Swiss pharmacies in the 2016/17 and 2017/18 influenza seasons and implications for vaccination policy. Swiss Med Wkly. 2019;149:w20161.
- Lang P. Vaccination status of children in Switzerland [dissertation]. University of Basel;2007:1-299.
- Riesen M Garcia V Low N Althaus CL. Modeling the consequences of regional heterogeneity in human papillomavirus (HPV) vaccination uptake on transmission in Switzerland. Vaccine. 2017;35(52):7312–21. doi:.https://doi.org/10.1016/j.vaccine.2017.10.103
- Sheikh S Biundo E Courcier S Damm O Launay O Maes E A report on the status of vaccination in Europe. Vaccine. 2018;36(33):4979–92. doi:.https://doi.org/10.1016/j.vaccine.2018.06.044
- Paguio JA Yao JS Dee EC. Silver lining of COVID-19: Heightened global interest in pneumococcal and influenza vaccines, an infodemiology study. Vaccine. 2020;38(34):5430–5. doi:.https://doi.org/10.1016/j.vaccine.2020.06.069
- Trends.google.com. [Internet]. Grippeimpfung. [cited 2021 Mar 3]. Available from: https://trends.google.com/trends/explore?geo=CH&q=%2Fm%2F0416v7
- Chau JPC Lo SHS Choi KC Chau MHK Tong DWK Kwong TKY Factors Determining the Uptake of Influenza Vaccination Among Children With Chronic Conditions. Pediatr Infect Dis J. 2017;36(7):e197–202. doi:.https://doi.org/10.1097/INF.0000000000001550
- Casalino E Ghazali A Bouzid D Antoniol S Pereira L Kenway P Emergency Department study group on respiratory viruses. Patient’s behaviors and missed opportunities for vaccination against seasonal epidemic influenza and evaluation of their impact on patient’s influenza vaccine uptake. PLoS One. 2018;13(3):e0193029. doi:.https://doi.org/10.1371/journal.pone.0193029
- Ewig CLY Tang KM Leung TF You JHS. Influenza vaccine coverage and predictive factors associated with influenza vaccine uptake among pediatric patients. Am J Infect Control. 2018;46(11):1278–83. doi:.https://doi.org/10.1016/j.ajic.2018.04.219
- Ourworldindata.org. [Internet]. Vanderslott S, Dadonaite B: Vaccination. [cited 2021 Mar 3]. Available from: https://ourworldindata.org/vaccination