Intermediate and definitive hosts of Schistosoma mansoni in Corrientes province, Argentina
Mem. Inst. Oswaldo Cruz
; 101(supl.1): 233-234, Oct. 2006.
Article
en En
| LILACS
| ID: lil-441251
Biblioteca responsable:
BR1.1
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:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Roedores
/
Schistosoma mansoni
/
Biomphalaria
/
Vectores de Enfermedades
Límite:
Animals
País/Región como asunto:
America do sul
/
Argentina
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Argentina
Pais de publicación:
Brasil