Abstract
The purpose of this study is to examine the factors that influence attitudes toward Covid-19 vaccination. In particular, we will examine affect toward the vaccine and perceptions of its effectiveness, as well as neumeracy, which plays an important role in health risk/benefit perceptions. In this study, we conducted a web-based survey in late August 2021 during the fifth wave of the new coronavirus epidemic, targeting 1103 unvaccinated men and women aged 20-70 years nationwide. The results showed a strong association between acceptance of vaccination and affect toward vaccines and perceptions of vaccine effectiveness. Furthermore, the detailed process of attitude formation toward vaccination was clarified by analyzing the relationship between each of the factors strongly associated with acceptance the scores of neumeracy, distribution of surrounding opinions, and trust in information sources, as well as the differences between the influenza and cervical cancer vaccines.
