The United Nations public health arm. Monitors disease outbreaks, assesses the performance of health systems around the globe, maintains world epidemiological and statistical information, and other activities.

The CDC is leading federal agency for protecting the health and safety of the people of the United States. Their "spotlights" section includes the latest information on emerging diseases.

"The Behavioral Risk Factor Surveillance System (BRFSS) is the nation’s premier system of health-related telephone surveys that collect state data about U.S. residents regarding their health-related risk behaviors, chronic health conditions, and use of preventive services."

"The National Health and Nutrition Examination Survey (NHANES) is a program of studies designed to assess the health and nutritional status of adults and children in the United States. The survey is unique in that it combines interviews and physical examinations. NHANES is a major program of the National Center for Health Statistics (NCHS). NCHS is part of the Centers for Disease Control and Prevention (CDC) and has the responsibility for producing vital and health statistics for the Nation."

The NHIS has been conducted since 1957 by the National Center for health statistics [NCHS] and its predecessor agency. The survey collects data from a large representative sample of households in the United States. NHIS is “the principal source of information on the health of the civilian non-institutionalized population of the United States.” It includes data on health status, care, demography and behaviors.

From the National Cancer Institute, SEER (Surveillance, Epidemiology, and End Results) Program web site SEER collects cancer incidence data from population-based cancer registries covering approximately 34.6 percent of the U.S. population. The SEER registries collect data on patient demographics, primary tumor site, tumor morphology, stage at diagnosis, and first course of treatment, and they follow up with patients for vital status.

Contains data on specific diseases as reported by state and territorial health departments and reports on infectious and chronic diseases, environmental hazards, natural or human-generated disasters, occupational diseases and injuries, and intentional and unintentional injuries.

Contains statistics and data sets from the Centers for Disease Control and Prevention.

A major source of United States health data from a variety of sources and surveys.

National Institute of Dental and Craniofacial Research (NIDCR) "supports the collection of statistics to document the magnitude of oral, dental, and craniofacial conditions and assess oral health trends in the United States. NIDCR also supports the Dental, Oral, and Craniofacial Data Resource Center that provides oral health-related data from national health surveys."