Kasamatsu, Ayu, Masayuki Ota, Tomoe Shimada, Munehisa Fukusumi, Takuya Yamagishi, Anita Samuel, Manami Nakashita, et al. “Enhanced Event-Based Surveillance for Imported Diseases During the Tokyo 2020 Olympic and Paralympic Games”. Western Pacific Surveillance and Response 12, no. 4 (December 22, 2021). Accessed May 30, 2026. https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/903.