Fig. 1

Schematic of subject recruitment and serum sample analysis for WNV E IgG antibodies. a Subjects were recruited either from the general public (asymptomatic) and self-reported to have no previous history of WNV infection or in collaboration with the Department of Public Health (symptomatic) and previously diagnosed with WNV infection. Samples from both groups of subjects were analyzed as indicated. b Analysis of WNV anti-E glycoprotein antibodies (IgG) in the serum samples obtained from 408 subjects via ELISA