Association between Trypanosoma cruzi zymodemes and specific humoral depression in chronic chagasic patients
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We previously rerported four autochthonous cases of Chagas disease in Bolivia, presenting a particular pattern of negative serology with positive xenodiagnosis (Brenière et al., 1984). To date, we have observed 13 similar cases (8 women and 5 men), 12 from Bolivia and one from Argentina. The age of these patients ranged from 18 to 58 years (mean 39+- 13) ...