Table 1. Demographic data and West Nile virus (WNV) antibody and IgG avidity patterns in 10 persons tested 3 years post- WNV infection. An index >1.1 and >1.5 is defined as positive for the IgM and IgG ELISAs, respectively.

WNND: West Nile neuroinvasive disease, M: male, ND: not done