Table 1 Characteristics of children classified as infected before or after birth.

Characteristic	Congenital															Acquired
Case Number	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Treatment in pregnancy	N	N	N	U	U	N	N	N	N	N	Y	N	N	N	N	U	U	U	N	N	N	U	N	U	N	N	N	U	U	N	U
IgM + at presentation	X			X	N	N	N	N	N		N		X		N		N	N	N	N	N		N		N	X	X		N		X
RC <2 years old	X			X	X	X	X		X		X		X	X	X
Signs in infancy	X	X	X		X		X	X	X	X		X	X			*
First RC ⩾⩾4–9 years												X												X				X
First RC ⩾⩾10 years		X								X						X	X	X	X	X	X	X	X		X	X	X		X	X	X

IgM, immunoglobulin M; N, no; RC, retinochoroiditis; U, unknown; Y, yes.

*Amblyopia noted in the past