Chang M S, Doraisingam P, Hardin S, Nagum N
Vector Borne Diseases Control Unit, Department of Medical and Health Services, Sarawak, East Malaysia.
J Trop Med Hyg. 1995 Jun;98(3):192-8.
Entomological investigations on malaria and bancroftian filariasis transmission were carried out in the endemic area of Baram District, Sarawak. The Anopheles composition, survival and infection rates of malaria and filariasis were compared in the village and 0.5 km from the village ecotype, in forested areas. Anopheles leucosphyrus, An. barbirostris and An. donaldi are the vectors for malaria and bancroftian filariasis in both ecotypes. Biting and infection rates vary, but An. leucosphyrus differed with a peak around midnight in the forested area and soon after dusk in the village setting. The parous rate of An. leucosphyrus was significantly higher in the forest ecotype (P < 0.0001); however, the proportion of 3-parous and older was not overall higher in the forest ecotype (P = 0.68). The entomological inoculation of malaria parasites by An. leucosphyrus was comparatively higher in the forested areas (P > 0.5). The implications of malaria and filariasis transmission in the forested areas in Baram District are discussed.
在砂拉越州巴兰区的疟疾和班氏丝虫病流行地区开展了关于疟疾和班氏丝虫病传播的昆虫学调查。对村庄以及距离村庄生态类型0.5公里的森林地区的按蚊组成、疟疾和丝虫病的生存率及感染率进行了比较。白环按蚊、须喙按蚊和多氏按蚊是这两种生态类型中疟疾和班氏丝虫病的传播媒介。叮咬率和感染率各不相同，但白环按蚊有所差异，在森林地区午夜前后出现高峰，而在村庄环境中则在黄昏后不久出现高峰。白环按蚊的经产率在森林生态类型中显著更高（P < 0.0001）；然而，森林生态类型中三胎及以上的比例总体上并不更高（P = 0.68）。白环按蚊对疟原虫的昆虫接种率在森林地区相对较高（P > 0.5）。文中讨论了巴兰区森林地区疟疾和丝虫病传播的影响。
