The establishment of the Japan Institute for Health Security (JIHS): A new era in infectious disease response and research.

Abstract

On April 1, 2025, the National Center for Global Health and Medicine (NCGM) and the National Institute of Infectious Diseases (NIID) will be merged to establish the Japan Institute for Health Security (JIHS). This merger strengthens Japan's capacity to address infectious diseases and health threats, aiming for a resilient and secure society. This paper highlights the establishment of JIHS, its alignment with government reforms, and its strategic priorities for the future. The initiative originated on October 6, 2020, when the Liberal Democratic Party's Policy Research Council proposed measures to address vulnerabilities exposed by COVID-19. In 2022, the Japanese government called for formulating a central control tower, the Cabinet Agency for Infectious Disease Crisis Management (CAICM), upgrading the divisions related to infectious diseases to the Department of Infectious Disease Prevention and Control in the Ministry of Health, Labour and Welfare (MHLW), and establishing the JIHS. JIHS will serve as a scientific advisory body during infectious disease crises, guiding the Prime Minister and the MHLW. It focuses on four key areas: i) Disease intelligence: risk assessment and data analysis; ii) Research, development, and innovation: advancing medical science; iii) Comprehensive medical services: strengthening clinical response capacity; and iv) Human resource development and international cooperation: building expertise and partnerships. Through integration, JIHS aims to improve existing systems and create synergy between basic and clinical research. As a hub for domestic and international collaboration, JIHS will consolidate critical information, catalyze innovative research, and deliver transformative solutions to address domestic and global infectious disease challenges.