West Nile Virus Neuroinvasive Disease Incidence by State 2021

West Nile Virus Neuroinvasive Disease Incidence by State – United States, 2021 (as of Sepetember 21, 2021)

Map of the United States showing the incidence of human West Nile virus neuroinvasive disease by state. See below for data.

This map shows the incidence of human West Nile virus neuroinvasive disease (e.g., meningitis, encephalitis, or acute flaccid paralysis) by state for 2021 with shading ranging from 0.01‐0.24, 0.25‐0.49, 0.50‐0.99, and greater than 1.00 per 100,000 population.

Neuroinvasive disease cases have been reported to ArboNET from the following states for 2021: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, District of Columbia, Georgia, Idaho, Illinois, Iowa, Kansas, Louisiana, Massachusetts, Michigan, Missouri, Nebraska, New Jersey, New Mexico, New York, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, and Washington.