• Philippa J I Foster, Anthony A Laverty, and Filippos T Filippidis.
• Imperial College London Department of Primary Care and Public Health, Charing Cross Campus, The Reynolds Building, St Dunstan's Road, London, W6 8RP, UK. Electronic address: philippa.foster17@imperial.ac.uk.
• Prev Med. 2022 Jun 1; 159: 107071.

AbstractVaccination has saved millions of lives. Vaccine hesitancy was recently declared a major threat to health by the World Health Organisation. Sociodemographic variables and knowledge level about vaccines have been suggested previously to affect vaccine uptake. This study aimed to investigate how levels of vaccination knowledge and concerns around safety of vaccines varied across sociodemographic factors in the European Union and United Kingdom. Levels and sources of knowledge and vaccine attitude patterns were examined across different areas of Europe. Data from the March 2019 Eurobarometer survey was used in this study which had 27,524 participants across the European Union and the United Kingdom. Two-level logistic and linear regressions were used to look for associations between sociodemographic variables, vaccine attitudes and knowledge level. Those who trusted information from healthcare workers and healthcare authorities were most likely to have positive vaccine attitudes; those trusting internet sources the most were the least likely. Those with greater vaccine related knowledge were more likely to report positive vaccination attitudes. Healthcare workers are key to dissemination of vaccination advice however many are becoming hesitant themselves. An increasing number of people are seeking online sources for vaccination information, and this has implications with information accuracy and vaccine hesitancy. A considerable proportion of the adult population in the European Union and the United Kingdom was concerned about the safety or side effects of vaccines. Continued efforts to increase trust in vaccines both in whole populations and specific groups are needed.Copyright © 2022 Elsevier Inc. All rights reserved.

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