Valente V C, Valente S A, Noireau F, Carrasco H J, Miles M A
Instituto Evandro Chagas, Fundacao Nacional de Saude, Belém, Pará State, Brazil.
J Med Entomol. 1998 Mar;35(2):99-103. doi: 10.1093/jmedent/35.2.99.
Just over 100 autochthonous cases of Chagas disease are reported from the Brazilian Amazon Basin. Panstrongylus geniculatus (Latreille) occurs throughout the region and is the known vector of Trypanosoma cruzi, principal zymodeme 3 (Z3) to the armadillo Dasypus novemcinctus. In the small riverine community of Furo do Rio Pau Grande, pigsties adjoining houses were heavily infested with P. geniculatus, which repeatedly attacked local inhabitants. Palm trees in the immediate vicinity were also infested. T. cruzi principal zymodeme 1 (Z1) was isolated from P. geniculatus, domestic pigs, and opossums, but no human infections were detected. The threat of endemic Chagas disease to the Amazon Basin from either domiciliation of local silvatic triatomine species, or from migration of domestic vectors, demands a program of vigilance and plans of action to eliminate household triatomine colonies.
据报告，巴西亚马逊河流域仅有100多例恰加斯病本土病例。膝状锥猎蝽（Latreille）遍布该地区，是克氏锥虫主要酶型3（Z3）传播给九带犰狳Dasypus novemcinctus的已知媒介。在里约保格兰德河小支流的河边小社区，毗邻房屋的猪圈里有大量膝状锥猎蝽，它们多次攻击当地居民。附近的棕榈树也受到了侵扰。从膝状锥猎蝽、家猪和负鼠中分离出了克氏锥虫主要酶型1（Z1），但未检测到人类感染。当地野生锥蝽物种定居或家栖媒介迁移对亚马逊河流域恰加斯病流行构成的威胁，需要开展一项警惕计划和行动计划，以消除家庭锥蝽群落。
