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Incidence of total and neuroinvasive West Nile virus infection in the United States, 1999-2020

A total of 52,520 cases were reported in the United States from 1999 to 2020. (Source: Dr. Douglas J Lanska, based on annual West Nile virus data from the Centers for Disease Control and U.S. Census Bureau population estimates for July 1 of each year of the reporting period.)