| congenital chagas' disease: diagnostic and clinical aspects. | the diagnostic and clinical aspects of congenital chagas' disease were studied in 71 children in buenos aires. the children's ages ranged from 2 days to 10 years. in infants < 6 months old, the disease was diagnosed by detection of trypanosoma cruzi in the blood; the microhematocrit test was positive in 38 (97.4%) of 39 cases. this test was the fastest and most reliable diagnostic method in this group, whereas two conventional serological methods were useful in children > or = 6 months of age. f ... | 1995 | 8527542 |