Background: Despite significant advancements in immunization over the last century, vaccine hesitancy is a major threat to world health. Health-related information available from a variety of sources, including new media such as social media platforms, can encourage vaccine hesitancy. The aim of this study is to determine the level of vaccine hesitation among adults, specifically their belief in the advantages of vaccination and their perceptions of vaccine-related dangers in relation to social media addiction and coronavirus disease 2019 (COVID-19) anxiety.Materials and methods: Between December 2021 and January 2022, 454 adults participated in an online cross-sectional survey consisting of the social media use disorder scale, the vaccine hesitancy scale, and the coronavirus anxiety scale.Results: The results of the study revealed a strong correlation between social media addiction, vaccine hesitation, and COVID-19 anxiety.Conclusion: Given the potential for misinformation to spread through social media, especially in a situation like a pandemic, the conscious use of social media should be emphasized and anti-addiction measures are required. Novel programs including online interventions should be developed to promote vaccination among social media addicts who have relatively high vaccination hesitancy.

Background: Internet use, which provides the opportunity to access information from anywhere, and anytime, is increasing among adolescents and young adults. In studies examining the effect of technology use in adults, it has been observed that there is a relationship between cyberchondria and vaccine hesitancy. This study aimed to uncover the potential relationship between cyberchondria and vaccine hesitancy in adolescents and to obtain data for combating anti-vaccination in this age group.Materials and methods: A total of 2.353 high school students were enrolled within the scope of this research. The forms were delivered to the students online and 531 volunteers participated in the survey. The Cyberchondria Severity Scale and Vaccine Hesitancy Scale were used to evaluate the details of the relationship between cyberchondria and vaccine hesitancy levels in adolescents.Results: The compulsion subscales of the Cyberchondria Severity Scale in males and vaccine repugnance subscales of the Vaccine Hesitancy Scale in females were statistically significantly higher. Cyberchondria and vaccine hesitancy have a strong relationship with each other except benefits and protective value of vaccines subscale of vaccine hesitancy.Conclusion: Health policymakers should be aware of this relationship and there is a need to develop novel online intervention programs for combating anti-vaccination, particularly among cyberchondriac adolescents who have relatively high vaccination hesitancy, particularly during the pandemic.