public health preparedness ■ Abstract Threats to Americans' health-including chronic disease, emerging infectious disease, and bioterrorism-are present and growing, and the public health system is responsible for addressing these challenges. Public health systems in the United States are built on an infrastructure of workforce, information systems, and organizational capacity; in each of these areas, however, serious deficits have been well documented. Here we draw on two 2003 Institute of Medicine reports and present evidence for current threats and the weakness of our public health infrastructure. We describe major initiatives to systematically assess, invest in, rebuild, and evaluate workforce competency, information systems, and organizational capacity through public policy making, practical initiatives, and practice-oriented research. These initiatives are based on applied science and a shared federal-state approach to public accountability. We conclude that a newly strengthened public health infrastructure must be sustained in the future through a balancing of the values inherent in the federal system.

Children Under 18 Years, a family of one adult and four children would need to have a household income of $25,625 or more to be above the poverty threshold. Any larger families would have a higher threshold. As the 2012 FEMA National Survey does not ask respondents about household size or number of children in the household, "less than $25,000 annually" serves as a proxy for low-income households.

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Workforce development programs in public health should link improvements in workers' performance with improvements in their agencies' performance. The "ten essential services" of public health provide criteria for measuring both individual worker training (as in workforce competency standards) and agency performance (as in the Centers for Disease Control and Prevention's National Public Health Performance Standards Program). This shared foundation was the basis for a model strategic training program developed for use in a 500-employee urban county health department. Full implementation of this model as a foundation for assessment, curriculum development, and evaluation requires careful attention to management issues, confidentiality of employee records, and evaluation methodologies.