Intermediate and definitive hosts of Schistosoma mansoni in Corrientes province, Argentina
Mem. Inst. Oswaldo Cruz
;
101(supl.1): 233-234, Oct. 2006.
Artículo
en Inglés
| LILACS
| ID: lil-441251
ABSTRACT
Corrientes province is located in the humid subtropical region of Argentina northeast on the left riverbank of Paraná River in the border with the South of Brazil. This is a region without schistosomiasis but planorbid and rodents that would serve as host of the life cycle of Schistosoma mansoni inhabit here. The objective of this work is to know the role of rodent as definitive host of schistosomiasis. Biomphalaria tenagophila (4 to 8 mm Ø) from Maloyas, exposed each to 10 miracidia of SJ2 strain of S. mansoni natives from Brazil were susceptible (5 percent). The degree of compatibility was Class II of Frandsen. Five wild rodents captured in the same ecological niche were exposed transcutaneously to infection with 40 cercariae for animal two Olygoryzomys flavescens, two Holochilus braziliensis, and one Scapteromys tuncidus. Only one H. braziliensis eliminated eggs in feces. Prepatent period was of 83 days. With these feces, two of six (33.3 percent) B. tenagophila from Maloyas were infected with miracidium. It was demonstrated, in an area free of schistosomiasis, that life cycle S. mansoni is closed with planorbid and rodents that live in the same ecological niche.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Roedores
/
Schistosoma mansoni
/
Biomphalaria
/
Vectores de Enfermedades
Límite:
Animales
País/Región como asunto:
America del Sur
/
Argentina
Idioma:
Inglés
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
2006
Tipo del documento:
Artículo
País de afiliación:
Argentina
Institución/País de afiliación:
Universidad Nacional del Nordeste/AR
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