Objective: To investigate a measles outbreak that spread to Japan and Taiwan, China during March–May 2018, exploring the characteristics of the super-spreading event. Methods: A contact investigation of the index case and reconstruction of the epidemiological dynamics of measles transmission were conducted. Employing a mathematical model, the effective reproduction number was estimated for each generation of cases. Results and discussion A single index case gave rise to a total of 38 secondary cases, 33 in Japan and five in Taiwan, China. Subsequent chains of transmission were observed in highly vaccinated populations in both Japan and Taiwan, China. The effective reproduction number of the second generation was >1 for both Japan and Taiwan, China. In Japan, the reproduction number was estimated to be <1 during the third generation. Vaccination of susceptible individuals is essential to prevent secondary and tertiary transmission events.

The University of Tokyo Disability Services Office and the University of Tokyo Hospital have striven to advance the inclusion of individuals with disabilities and to encourage the co-production of research as well as mental health services with peer support workers. In convergence with these endeavors, the Center for Diversity in Medical Education and Research (CDMER) was founded in 2021. The Center aims to establish an environment and culture that facilitates the participation and success of medical professionals with disabilities. For this purpose, it is essential to integrate the perspective of the social model of disability into medical education and promote co-production in the medical field, which is among the most challenging areas that can realize co-production. The Center is involved in various educational and research activities, including managing educational programs for medical students and supporting student-led research.