Center for Disease Control and Prevention (CDC) Wonder"Wide-ranging Online Data for Epidemiologic Research: menu-driven system that makes the information resources of the Centers for Disease Control and Prevention (CDC) available to public health professionals and the public at large. Access statistical research data published by CDC, as well as reference materials, reports and guidelines on health-related topics. Public-use data sets about mortality (deaths), cancer incidence, HIV and AIDS, tuberculosis, vaccinations, natality (births), census data and many other topics are available for query, and the requested data are readily summarized and analyzed, with dynamically calculated statistics, charts and maps."