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Characterization of Paraguayan Trypanosoma cruzi strains isolated from acute patients of Chagas disease

Acosta, N.; Maldonado, M.; Sanabria, L.; Yaluff, G.; Fuentes, S.; Torres, S.; Ferreira, M.E.; Rojas de Arias, A.; Shozawa, T.

Tropical Medicine and Parasitology Official Organ of Deutsche Tropenmedizinische Gesellschaft and of Deutsche Gesellschaft für Technische Zusammenarbeit 46(3): 195-200

1995

ISSN/ISBN: 0177-2392
PMID: 8533024
Document Number: 443271
Five Paraguayan Trypanosoma cruzi strains, isolated from acute chagasic patients, were studied by their behavior in BALB/c mice, metacyelogenesis, bio-metry of metacyclic forms and lectin agglutination. Early and intermediate parasitemic peaks were observed and the strains did not show high virulence. Metacyclogenesis capacity was not higher than 50% in all cases and there were no considerable differences in the biometry. They all belong to WGA-type strains according to the lectin agglutination assays except for one strain that agglutinated with WGA and PNA lectins. Although previous schizodeme analysis of these strains showed rather homogeneous profiles, biological features were quite heterogeneous.

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