Why public health matters today more than ever: the convergence of health and social policy.

We argue that public health matters more today than ever because it is uniquely positioned as a meeting point or fulcrum between health care and social welfare policy perspectives on the social determinants of health. It combines a grounding in the sciences of biomedicine and epidemiology with the moral imperatives of social advocacy. Health cannot be delivered through health care policy alone and neither can social welfare policy ensure the well-being of all citizens on its own.