Yukimasa Matsuzawa is a GMF Indo-Pacific resident fellow focused on the intersection of health security and foreign policy. He also serves as a 2024–2025 Congressional fellow under the American Political Science Association–Sasakawa Peace Foundation Fellowship.

Matsuzawa previously served in key roles in Japan and international health security infrastructure. He was deputy director of the Global Outbreak Intelligence, Capacity Building, and Deployment Coordination Center at the Japan Institute for Health Security, where he led collaborations with partners across the United States, Europe, and Indo-Pacific. He also worked as a medical officer in the Japanese Ministry of Health, Labour and Welfare, when he had a one-year secondment to the US Department of Health and Human Services as a medical liaison.

Matsuzawa holds a PhD from the University of Tokyo and has expertise in pandemic influenza and biosecurity. He conducts research at Japan’s National Graduate Institute for Policy Studies on strategies against AI-driven biological threats. He has published extensively in peer-reviewed journals on virology and health security.