West Nile Virus Activity by State 2019

West Nile Virus Activity by State – United States, 2019 (as of July 9, 2019)

This map shows the incidence of human West Nile virus neuroinvasive disease (e.g., meningitis, encephalitis, or acute flaccid paralysis) by state for 2016.  West Nile virus infections in humans have been reported to CDC ArboNET from the following states: Arizona, Arkansas, Colorado, Idaho, Nevada, New Jersey, Oklahoma, South Dakota, Virginia, and Wyoming..

*WNV human disease cases or presumptive viremic blood donors. Presumptive viremic blood donors have a positive screening test which has not necessarily been confirmed.

†WNV veterinary disease cases, or infections in mosquitoes, birds, or sentinel animals.

Data table: WNV infections in mosquitoes, birds, sentinel animals, or veterinary animals have been reported to CDC ArboNET from the following states: Arizona, Arkansas, California, Colorado, Florida, Georgia, Idaho, Iowa, Illinois, Indiana, Louisiana, Michigan, Mississippi, New Jersey, Nevada, New York, Ohio, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Virginia, and Wyoming.

West Nile virus infections in humans have been reported to CDC ArboNET from the following states: Arizona, Arkansas, Colorado, Idaho, Nevada, New Jersey, Oklahoma, South Dakota, Virginia, and Wyoming.