Expanded USGS Disease Mapping Service

The U.S. Geological Survey (USGS) and the Centers for Disease Control and Prevention (CDC) are pleased to announce an expansion of their disease mapping services. The new website, Disease Maps , in addition to showing West Nile virus activity, maps cases of five other arboviruses: St. Louis encephalitis (SLE), eastern equine encephalitis (EEE), western equine encephalitis (WEE), La Crosse encephalitis (LAC), and Powassan virus (POW).

Data on these diseases are provided by state health departments to CDC using CDC's ArboNet surveillance system. Every Tuesday at 3 a.m. a summary report is generated from the ArboNet database and transmitted to USGS. These data are used to create the 700+ maps contained on the website. Anyone who uses the West Nile Maps address will be redirected to the new home page at Disease Maps.

Please note that the final 2005 data and maps for the additional five arboviruses are also accessible from this site. The 2005 summary data can be viewed by clicking on the "Historical Data" link under each disease type.