TABLE I.

Seroprevalence for Toxoplasma gondii.

		Female			Male			Total
	Age (yr)	N	Positive	%	N	Positive	%	N	Positive	%	SD (%)*
Bamako (urban)	<15	113	31	27.4				113	31	27.4	8.3
	Neonate†	35	11	31.4	79	20	25.3	114	31	27.2	8.4
Kolle (rural)	0.5–1	4	0	0.0	6	0	0.0	10	0	0.0	0.0
	1–4	58	1	1.7	66	0	0.0	124	1	0.8	1.4
	5–9	128	3	2.3	91	3	3.3	219	6	2.7	5.7
	10–14	63	6	9.5	61	8	13.1	124	14	11.3	5.7
	≥15	41	10	24.4	15	5	33.3	56	15	26.8	5.8

^*Two SDs from the mean, based on observed sample size (N) and seropositivity (S): 2 ⨉ 3 (S [1 – S]/N)^0.5.

^†All seropositive neonate samples were from seropositive mothers.