Incidence by state map data description: West Nile virus neuroinvasive disease incidence maps reflect surveillance reports released by state and local health departments to CDC's ArboNET system for public distribution. Map shows the incidence of human neuroinvasive disease (encephalitis, and/or meningitis, and/or acute flaccid paralysis) by state for 2011 with shading ranging from .01 to 0.24, 0.25 to 0.49, 0.50 to 0.99, and greater than 1.0 per 100,000 population.
Neuroinvasive disease cases have been reported to CDC ArboNET from the following states: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, DC, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, Wisconsin, and Wyoming.
USGS: CDC Arbonet Maps provided by USGS
WNV Surveillance Maps Detailing Neuroinvasive Disease Incidence Additional Years:
For archived surveillance pages please visit the West Nile virus surveillance archives