Table 2.

Treatment and follow-up of newborns with congenital T. cruzi infection diagnosed at the time of birth or within 30 days of age, Hospital Regional Ushuaia, Ushuaia, 2001–2002

Variable	Case 1	Case 2	Case 3
Age of diagnosis	10 days	2 days	10 hours
IHA before treatment	1/512	1/512	1/128
EIA (IP) before treatment	5.3	6.6	4.7
EIA-SAPA cut-off = 0.300	DO = 1.885 reactive	DO = 1.118 reactive	DO = 2.607 reactive
Clinical manifestation	No	No	No
Age when treatment started	21 days	9 days	2 days
Tolerance of treatment	Good (no adverse events)	Good (no adverse events)	Good (no adverse events)
Age at first control post-treatment	9 months	10 months	8 months
IHA at first control post-treatment	Not reactive	Not reactive	Not reactive
EIA (IP) at first control post-tratment	1.0	1.0	Not reactive
EIA-SAPA at first control post-treatment	DO = 0.319 (low reactive)	DO = 0.188 (not reactive)	DO = 0.132 (not reactive)
Age at second control post-treatment	4 years old	4 years old	17 months
IHA at second control post-treatment	Not reactive	Not reactive	Not reactive
EIA (IP) at second control post-treatment	Not reactive	Not reactive	Not reactive
EIA-SAPA at second control post-treatment	DO = 0.164 (not reactive)	DO = 0.132 (not reactive)	DO = 0.106 (not reactive)

IP = index of positivity (OD/cut-off); IHA = indirect hemagglutination; EIA = enzyme-linked immunosorbent assay.