Cumulative Incidence of West Nile Virus Infection, Continental United States, 1999–2016

Abstract

Using reported case data from ArboNET and previous seroprevalence data stratified by age and sex, we conservatively estimate that ≈7 million persons in the United States have been infected with West Nile virus since its introduction in 1999. Our data support the need for public health interventions and improved surveillance.

Keywords

• West Nile virus
• prevalence
• United States
• West Nile neuroinvasive disease
• West Nile fever
• asymptomatic infections