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Evolution of Public Opinion on COVID-19 Vaccination in Japan: Large-Scale Twitter Data Analysis

Evolution of Public Opinion on COVID-19 Vaccination in Japan: Large-Scale Twitter Data Analysis

We examined the following 4 major events during the vaccination period: (A) vaccination start for health workers, (B) vaccination start for older people, (C) vaccination start for the general population (under 65 years), and (D) start of the Olympic Games in Tokyo. A tweet is a unidirectional process of sharing information with the community. Retweeting, on the other hand, is a social process where users engage and share tweets to spread opinions on their own social network [42].

Ryota Kobayashi, Yuka Takedomi, Yuri Nakayama, Towa Suda, Takeaki Uno, Takako Hashimoto, Masashi Toyoda, Naoki Yoshinaga, Masaru Kitsuregawa, Luis E C Rocha

J Med Internet Res 2022;24(12):e41928