The 10th Edition of World Congress on Infectious Diseases & One Health (WCID 2026) will be held from October 5–7, 2026, in Tokyo, Japan, with participation available both onsite and virtually. Under the theme “From Pathogens to Prevention: Science, Surveillance, and Solutions”, the congress aims to bring together a truly international audience for a dynamic exchange of ideas and expertise in infectious disease research and healthcare. WCID 2026 offers an inclusive platform where diverse voices converge to address the pressing challenges of infectious diseases in an interconnected world. Bringing together leading researchers, clinicians, academicians, industry representatives, public health experts, and policymakers, the gathering creates opportunities for knowledge exchange that go beyond disciplines. Participants can engage in discussions on the latest diagnostic tools, preventive measures, innovative treatments, and strategies to strengthen public health systems globally. The congress is designed to spark collaborations that accelerate the translation of cutting-edge research into real-world healthcare solutions with meaningful societal impact. The scientific program will feature keynote addresses from internationally recognized experts, oral and poster presentations showcasing emerging research, panel discussions that foster cross-sector dialogue, and workshops designed to deliver hands-on learning experiences. Networking activities will encourage meaningful professional connections, offering attendees a chance to share experiences, explore new projects, and advance their careers while contributing to collective progress. We look forward to welcoming participants from around the world for this inspiring and transformative gathering that promises to advance scientific dialogue, strengthen collaborations, and shape the future of infectious disease research and global health.