The current issue of Health Affairs is dedicated to public health. There are some terrific articles, but I particularly commend these:

• Can Public Health And Medicine Partner In The Public Interest? [link]
  J. Michael McGinnis
  Abstract: The dominant issues for health and health care today can be effectively engaged only if public health and medicine work together as better partners. Yet historical, professional, organizational, operational, and financial barriers exist to closer relationships. Fostering the necessary collaboration will require changes for both public health and medicine in leadership styles, professional education, practice incentives, accountability measures, and financing structures.

• What Does Social Justice Require For The Public’s Health? Public Health Ethics And Policy Imperatives [link]
  Lawrence O. Gostin and Madison Powers
  Abstract: Justice is so central to the mission of public health that it has been described as the field’s core value. This account of justice stresses the fair disbursement of common advantages and the sharing of common burdens. It captures the twin moral impulses that animate public health: to advance human well-being by improving health and to do so particularly by focusing on the needs of the most disadvantaged. This Commentary explores how social justice sheds light on major ongoing controversies in the field, and it provides examples of the kinds of policies that public health agencies, guided by a robust conception of justice, would adopt.