Aichi, Miyagi and Gunma begin operating large-scale vaccination centers Sorry, but your browser needs Javascript to use this site. If you're not sure how to activate it, please refer to this site: https://www.enable-javascript.com/ People sit at a gymnasium at Fujita Health University in Toyoake, Aichi Prefecture, where the prefectural government operated a mass inoculation center for COVID-19 vaccines on Monday. | KYODO Jiji May 24, 2021 Large-scale programs offering vaccination against COVID-19 for older residents began in the prefectures of Aichi, Miyagi and Gunma on Monday morning. The mass inoculation programs in the three prefectures use a vaccine developed by U.S. biotechnology company Moderna Inc., which was approved by the government on Friday.