Seasonal influenza vaccination: knowledge, attitude and practice in Varna, Bulgaria

Background: Seasonal influenza vaccination is recommended for certain at-risk groups in Bulgaria, but vaccine coverage and the population’s perception of vaccination are currently unknown. The objective of this study was to assess the level of seasonal influenza vaccination in Varna Region, Bulgaria. It also aimed to investigate the status of knowledge and the attitude towards the reliability, safety, and other aspects associated with the use of influenza vaccines. Methods: A cross-sectional survey was conducted among 120 responders in Varna Region, Bulgaria. They completed a questionnaire assessing the practice, knowledge, and attitude towards seasonal influenza vaccination. Results: Nearly 70% of all responders have never been vaccinated against seasonal influenza in their lives. The main reason indicated was a lack of confidence in the vaccine in general (53.7% of nonvaccinated responders). Individuals with insufficient knowledge, or with a negative perception, were more likely to not be vaccinated: being poorly informed and having a negative attitude towards influenza vaccination also decreased the chance of being vaccinated by 29% and 36%, respectively. Conclusions: This study indicates that efforts should be made towards achieving better understanding and knowledge of the vaccine’s mechanism of prevention and effectiveness among the Bulgarian population.