TABLE 3.

Development of specific immunoglobulins following primary T. gondii infection among six pregnant women with an IgG peak value detected ≥20 weeks after infection^a

Case no.	No. of wks after acquisition of infection	Test result
		Dye test (IU/ml)b	Platelia Toxo-IgG (IU/ml)c	Platelia Toxo-IgM (%)d	Toxo-Screen DA IgG (titer)	Toxo-ISAGA IgM (index)e	Platelia Toxo-IgA (%)d
1	1	12	0	140	0	12	44
	4	25	3	307	40	12	85
	6	100	22	322	540	12	104
	20	50	43	133	1,620	9	67
	21	100	26	86	1,620	9	60
	31	50	21	103	540	5	48
	35	12	18	83	180	5	43
5	−14f	0	0	21	0	0	24
	2	12	9	121	40	6	49
	4	6	17	115	180	10	68
	14	25	27	119	180	5	61
	29	25	48	87	540	0	59
9	1	25	0	276	40	11	65
	4	400	7	341	40	12	95
	5	200	7	371	540	12	80
	13	400	62	450	1,620	12	79
	21	800	119	342	18,000	12	577
	32	100	23	273	1,620	11	49
	52	50	38	256	540	12	33
10	2	50	15	396	180	12	201
	5	800	153	440	6,000	12	458
	8	1,600	317	525	18,000	12	589
	9	1,600	644	448	18,000	12	611
	22	400	1,651	279	54,000	12	224
	36	200	2,090	256	54,000	12	192
11	2	100	20	410	180	11	280
	4	800	480	602	6,000	12	482
	7	3,200	2,078	588	18,000	12	619
	8	6,400	2,331	600	54,000	12	660
	28	1,600	4,520	360	54,000	9	432
	39	1,600	1,680	265	54,000	11	439
25	1	50	4	345	40	12	442
	3	200	31	396	4,000	12	901
	4	1,600	119	486	6,000	12	976
	28	800	1,872	194	18,000	12	477

^aPeak values are shown in bold. 

^bPositive, ≥3 IU/ml. 

^cPositive, ≥6 IU/ml. 

^dPositive, ≥100%. 

^ePositive, index of ≥9; borderline, index of 5 to 8. 

^fA negative sample acquired 14 weeks before infection is not included in the study.