A minimal One Health approach? Lessons from the salmon aquaculture crisis in Chile.

This paper explores the application of the One Health approach through an analysis of the response to the 2007 crisis in Chile's salmon aquaculture industry. To evaluate the extent to which the case aligns with a "minimal" One Health framework, we draw on four key dimensions of this framework (methodological, epistemic, ontological, and ethical) and contrast the case with the response to the 2009 Q fever outbreak in the Netherlands. We conclude that the Dutch response to Q fever, characterized by limited institutional collaboration, a narrow disciplinary focus, and an anthropocentric ethical stance, fell short of even a minimal One Health approach. In contrast, the response by the Aquaculture Health Management Program (PGSA) to Chile's salmon aquaculture crisis represents a more integrated approach, involving multisectoral collaboration, interdisciplinary dialogue, and concern for animal and environmental health. While the Chilean case does not fully achieve a strong One Health model, it demonstrates the practical benefits of adopting a minimal One Health perspective, including reduced antibiotic use and improved disease control. The paper concludes that One Health should be understood as a flexible, problem-solving framework, and that clarity regarding its core dimensions is essential for strengthening One Health approaches.