Preliminary Maps & Data for 2019

As of July 23, 2019, a total of 34 states have reported West Nile virus infections in people, birds, or mosquitoes in 2019. Overall, 76 cases of West Nile virus disease in people have been reported to CDC. Of these, 53 (70%) were classified as neuroinvasive disease (such as meningitis or encephalitis) and 23 (30%) were classified as non-neuroinvasive disease.