Table 1

The specificity and sensitivity according to three different cut-off values

Cut-off value

Specificity

Sensitivity (positive serum)

0.1.

(73.33%)22/30

(100%)20/20

0.2

(90%)27/30

(100%)20/20

0.3

(100%)30/30

(95%)19/20

Tian et al. Virology Journal 2010 7:245   doi:10.1186/1743-422X-7-245