How Does the Public Receive Information about Vaccines during the COVID-19 Pandemic? A Nationwide Cross-Sectional Study in Spain

Spain has been one of the most severely impacted countries by COVID-19. Vaccination against COVID-19 is one of the most successful preventive strategies. However, some citizens show vaccine resistance, in part due to widespread disinformation that has been disseminated since the pandemic's start. The objective of this study was to explore the characteristics of the Spanish population in terms of their use of traditional and social media for COVID-19 vaccine-related information. A countrywide survey was conducted in June 2022 following a descriptive cross-sectional analysis. Respondents declared that 80.4% had received the full schedule of COVID-19 vaccination, and over 60% would take the booster dosage without hesitation. The major reasons for not having the booster vaccine were possible health risks (37%), and a lack of trust in the COVID-19 vaccines (29%). More than 85% of respondents closely followed the news on this topic, with the journalistic media (27%) and health authorities (26%) considered to be the most important sources for pandemic information, while social media was considered by 9% of respondents. Further collaboration between the media and health professionals, as well as campaigns to enhance vaccination uptake of the COVID-19 booster dose, might be considered in future strategies.