The committee’s work began with a vision—healthy people in healthy communities. This is not a new idea, but it is the guiding vision of Healthy People 2010, the health agenda for the nation. The committee embraced that vision and began discussing who should be responsible for assuring America’s health at the beginning of the twenty-first century—a duty historically assigned to governmental public health agencies, through the work of national, state, tribal, and local departments of health. Current realities indicate that this is no longer sufficient. On the one hand, government has a unique responsibility to promote and protect the health of the people built on a constitutional, theoretical, and practical foundation. However, governmental public health agencies alone cannot assure the nation’s health. First, public resources are finite, and the public’s health is just one of many priorities. Second, democratic societies define and limit the types of actions that can be undertaken only by government and reserve other social choices for private institutions. Third, the determinants that interact to create good or ill health derive from various sources and sectors. Among other factors, health is shaped by laws and policies, employment and income, and social norms and influences (McGinnis et al., 2002). Fourth, there is a growing recognition that individuals, communities, and various social institutions can form powerful collaborative relationships to improve health that government alone cannot replicate.

Health is a primary public good because many aspects of human potential such as employment, social relationships, and political participation are contingent on it. In view of the value of health to employers, business, communities, and society in general, creating the conditions for people to be healthy should also be a shared social goal. The special role of government must be allied with the contributions of other sectors of society. This report builds on the foundation of the Future of Public Health report, which asserted that public health is “what we as a society do collectively to assure the conditions in which people can be healthy” (IOM, 1988). In addition to assessing the state and needs of the governmental public health infrastructure—the backbone of the public health system—this report also focuses on the roles and actions of other entities that could be potential partners within such a system.

The emphasis on an intersectoral public health system does not supersede the special duty of the governmental public health agencies but, rather, complements it with a call for the contributions of other sectors of society that have enormous power to influence health. A public health system would include the governmental public health agencies, the health care delivery system, and the public health and health sciences academia, sectors that are heavily engaged and more clearly identified with health activities. The committee has also identified communities and their many entities (e.g., schools, organizations, and religious congregations), businesses and

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