TABLE 3.

Summary of agreement, clinical sensitivity, and clinical specificity of the PanBio WNV IgM capture ELISA compared to the Focus Diagnostics WNV IgM capture ELISA using antigen subtractiona

Result of PanBio IgM capture ELISA with antigen subtractionNo. of samples Focus IgM capture ELISA with the indicated result after antigen subtraction
PositiveNegativeEquivocal
Positive5341
Negative3526
Equivocal152
  • a In the comparison of the PanBio IgM capture ELISA with antigen subtraction and the Focus IgM ELISA with antigen subtraction, the agreement was 93.8%, the sensitivity was 94.6% (95% CI, 89 to 98%), and the specificity was 92.9% (95% CI, 87 to 93%).