One Health governance: theory, practice and ethics.

One Health approach is a global public good (GPG) that invites governance to maximize the health of humans, animals, and the environment by shaping interdisciplinary and cross-sectoral collaboration. This paper explores the theoretical foundations, practical applications, and ethical considerations of the One Health governance architecture. At the theoretical level, One Health governance invites systems thinking and involves collaborative efforts among multiple stakeholders, applying across multi-layered scenarios and requires public-private partnership (PPP).