Diakité N R, Adja A M, von Stamm T, Utzinger J, N'Goran E K
Laboratoire de zoologie-biologie animale, UFR biosciences, université de Cocody-Abidjan, 22 BP 770, Abidjan 22, Côte-d'Ivoire.
Bull Soc Pathol Exot. 2010 Feb;103(1):22-28. doi: 10.1007/s13149-009-0029-4.
Abstract From June 2007 to June 2008, entomological, malacological and parasitological investigations were carried out in five villages in close proximity to a small dam of Raf-fierkro in Bouaké, central Côte-d'Ivoire. The objective of the study was to identify vectors and intermediate host snails of parasitic diseases related to water, and to assess the prevalence of malaria, schistosomiasis and soil-transmitted helminthiasis before dam construction. Mosquitoes were caught by human landing catches, snails were collected in water bodies, and microscopic analyses of blood, stool and urine samples were carried out. Two malaria vector species were identified:Anopheles gambiae and Anopheles funestus. The average infective rate of An. gambiae ranged between 3.1 and 4.5 %. The infective rate of An. funestus was 1 % in all sites. The entomological inoculation rate ranged between 343.1 and 427.1 infective bites per person per year (ib/p/y)for An. gambiae and between 14.6 and 40.1 ib/p/y for An. funestus. Three species of were found: Plasmodium falciparum (predominant species), Plasmodium ovale and Plasmodium malariae. There were no intermediate host snails of schistosomiasis with the exception of Biomphalaria pfeifferi,intermediate host snail of Schistosoma mansoni in Ahougui. The prevalence of urinary and intestinal schistosomiasis and soil-transmitted helminthiasis was low. Our studies revealed important transmission of malaria, with the presence of three plasmodial species, whereas schistosomiasis and soil-transmitted helminthiasis were present, but only at low frequencies.
摘要 2007年6月至2008年6月，在科特迪瓦中部布瓦凯附近一个名为拉菲耶克罗的小水坝周边的五个村庄开展了昆虫学、软体动物学和寄生虫学调查。该研究的目的是确定与水相关的寄生虫病的病媒和中间宿主螺，并评估水坝建设前疟疾、血吸虫病和土壤传播蠕虫病的流行情况。通过人饵诱捕法捕捉蚊子，在水体中采集螺类，并对血液、粪便和尿液样本进行显微镜分析。鉴定出两种疟疾传播媒介：冈比亚按蚊和富氏按蚊。冈比亚按蚊的平均感染率在3.1%至4.5%之间。富氏按蚊在所有地点的感染率均为1%。冈比亚按蚊的昆虫接种率为每年每人343.1至427.1个感染性叮咬（ib/p/y），富氏按蚊为每年每人14.6至40.1个感染性叮咬。发现三种疟原虫：恶性疟原虫（优势种）、卵形疟原虫和三日疟原虫。除阿胡吉地区曼氏血吸虫的中间宿主菲氏小泡螺外，未发现血吸虫病的中间宿主螺。泌尿和肠道血吸虫病以及土壤传播蠕虫病的流行率较低。我们的研究揭示了疟疾的重要传播情况，存在三种疟原虫，而血吸虫病和土壤传播蠕虫病虽有存在，但频率较低。
