TABLE 2.

Comparison of diagnostic performances of the VCA IgG and VCA IgM (indirect) ELISAs based on GST-p18, p23, and p23-p18

ELISA (indirect)	Cutoff [OD]	Sera from patients with:					Seronegatives (n = 7)
		Primary infections (n = 22)		Previous infections (n = 102)
		No. pos.a	Sensitivity (%)	No. pos.	Sensitivity (%)	Specificity (%)	No. pos.	Specificity (%)
GST-p18 IgG	0.20	12	54.5	99	97.1		0	100.0
p23 IgG	0.15	17	77.3	95	93.1		0	100.0
p23-p18 IgG	0.20	18	81.8	101	99.0		0	100.0
GST-p18 IgM	0.40	22	100.0	1		99.9	0	100.0
p23 IgM	0.20	8	36.4	0		100.0	0	100.0
p23-p18 IgM	0.40	22	100.0	0		100.0	0	100.0

^apos., positive.