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Notice to Readers: Maps of National, State, and County Data Now Available on CDC WONDER

Two CDC online data-access systems, WONDER (Wide-ranging Online Data for Epidemiologic Research) and GATHER (Geographic Analysis Tool for Health and Environmental Research), have collaborated to produce maps for WONDER data-query applications. WONDER users can now create maps for each data element measured, select quantiles or set custom break-points for data groups, choose whether to display highways and rivers, add labels, and choose a color scheme. Maps are available for the following WONDER data requests:

Mapping capability will eventually be available for other data-query applications with location data elements.

WONDER (available at is an Internet system that makes CDC information resources and public health information available to public health professionals and the general public. GATHER (available at uses spatial analysis tools for public health applications, and is a product of CDC's Geographic Research, Analysis, and Services Program of the National Center for Environmental Health/Agency for Toxic Substances and Disease Registry.

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