The modern arena of public health runs counter to dominant market operation, leading to clashes in value systems. Cholera; antidepressant use versus school shootings; midwifery; handwashing. For a very long time these and other arenas have been battle-grounds for "market efficiency" and hereditary cultural assumptions and emotional baggage on one side, over health system priorities and technical solutions ensuring common human biosocial welfare on the other.

Speech dedicated to Joseph Bazalgette, engineer of the London sewer system, and also to John Snow, whose work on understanding cholera's spread saved countless millions in the modern world, and who birthed the modern science of epidemiology. Men amongst many whom we quietly owe our lives to, for not dying of cholera yesterday.

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