Olano V, Carrasquilla G, Méndez F
Instituto Nacional de Salud, Santa Fe de Bogotá, Colombia.
Rev Panam Salud Publica. 1997 Apr;1(4):287-94.
During the past several years, there has been an increase in the cases of urban malaria in Buenaventura, Colombia, from 576 in 1987 to 3296 in 1991 and 2017 in 1992; therefore, an epidemiological study to identify transmission patterns was carried out in this municipality on Colombia's Pacific coast. This paper describes the entomological findings regarding vectors, potential breeding sites and behavior of Anopheles species during the period from June 1993 to May 1994. Of the 469 potential breeding sites identified in the urban area, 28 were positive for anophelines, while in the neighboring rural zone, 20 out of 80 potential breeding sites were positive for the immature forms of Anopheles. Mining excavations, lakes and breeding ponds for fish or shrimp were the places where A. albimanus was more frequently found. For A. nuñeztovari, the breeding sites were rain puddles and ponds for breeding fish or shrimp. A. neivai was also identified in the urban area and larvae were collected from bromeliaceous plants. Both inside and outside the households mosquito collections were carried out, and 90% of the collected mosquitoes were identified as A. albimanus. Of the female A. albimanus 54.8% were parous. This species was found to have peak peridomiciliary activity between 6 p.m. and 10 p.m. The highest biting rate in the peridomiciliary area was 7.1 and was observed during March. It is expected that this entomological information will permit the launching of a strong community participation process and the implementation of control measures in accordance with the entomological findings related to malaria in the urban area of Buenaventura.
在过去几年中，哥伦比亚布埃纳文图拉市的城市疟疾病例有所增加，从1987年的576例增至1991年的3296例以及1992年的2017例；因此，在该国太平洋沿岸的这个城市开展了一项流行病学研究，以确定传播模式。本文描述了1993年6月至1994年5月期间关于按蚊种类的媒介、潜在孳生地及行为的昆虫学研究结果。在市区确定的469个潜在孳生地中，有28个发现了按蚊阳性，而在邻近的农村地区，80个潜在孳生地中有20个发现了按蚊幼虫阳性。采矿挖掘地、湖泊以及鱼虾养殖池塘是最常发现白纹伊蚊的地方。对于努涅斯按蚊来说，孳生地是雨水坑和鱼虾养殖池塘。在市区还发现了内瓦伊按蚊，并从凤梨科植物中采集到了幼虫。在住户内外都进行了蚊子采集，所采集的蚊子中有90%被鉴定为白纹伊蚊。白纹伊蚊雌蚊中有54.8%已产过卵。发现该物种在住所周围的活动高峰在下午6点至晚上10点之间。住所周围区域的最高叮咬率为7.1，出现在3月份。预计这些昆虫学信息将有助于推动社区积极参与，并根据与布埃纳文图拉市区疟疾相关的昆虫学研究结果实施控制措施。
