Prevalência, índices de infecção e hábitos alimentares de triatomíneos capturados em uma área de vigilância epidemiológica

Revista da Sociedade Brasileira de Medicina Tropical

Silva, Eduardo Olavo da Rocha e¹  Rodrigues, Vera Lúcia C. Corrêa¹  Lima, Virgilia Luna Castor de¹  Ferraz Filho, Antenor do Nascimento¹ 

关键词: Triatominae;    Trypanosoma cruzi;    Blood meals;    Panstrongylus megistus;    Microtriatoma borbai;   

DOI  :  10.1590/S0037-86821992000300006

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Medicina Tropical

【 摘 要 】

Prevalence of triatomines and their infection by Trypanosoma cruzi, were studied during 1974-1981, in the Administrative Region of Campinas, São Paulo, Brazil. This investigation was continued (1982-1986), blood meal tests with bird, marsupial, rodent and human antisera having been added. Panstrongylus megistus, predominant in the region, whose winged instars are often found infected by T. cruzi in inhabited houses, displayed and alimentary eclecticism. From a sample of 7,785, 14.78 percent reacted positively with human antisera. A similar, but less marked behaviour was observed in Rhodnius neglectus. Triatoma sordida, the secondmost important species in the Region, was neither demonstrated to be feeding on humans nor to be infected by T. cruzi. Changes in their natural habitat probably caused sharp rises in T. arthurneivai populations in the human dwellings. The capture of three specimes of Microtriatoma borbai marks the first occurrence of this species in the State São Paulo. "Focus investigation "in areas in the surveillance phase can detect triatomines in the process of domiciliation.

【 授权许可】

Unknown