Lakwo T L, Odongo-Aginya E I
Uganda Virus Research Institute, Schistosomiasis Department, Entebbe.
East Afr Med J. 1991 May;68(5):372-7.
The intensity of Schistosoma mansoni infection in the fishing villages of Bugonga and Kitubulu, and the occurrence of snail intermediate host population in the two villages are described and compared. A total of five hundred and six faecal samples from both villages were examined by modified Kato's technique and the prevalence infection rate at Kitubulu was 40.3% with mean egg count of 187 eggs per gram(epg) while in Bugonga it was 32.4% and 126 epg respectively. The snail intermediate host for S. mansoni in the two villages was 2,750 Biomphalaria choanomphala at Kitubulu and 1,268 at Bugonga. But at Kitubulu in the vicinity of the village 185 Biomphalaria peifferi occurred in small localized population. The cercarial screening test conducted on 4,018 B. choanomphala and 185 B. peifferi from the two villages revealed higher snail infection rate for both mammalian and non-mammalian cercariae at Kitubulu than Bugonga. Variations in infection rates both among the inhabitants and host snail populations in the two villages are discussed.
描述并比较了布贡加和基图布卢渔村曼氏血吸虫感染的强度，以及这两个村庄中间宿主螺类种群的情况。采用改良加藤技术对两个村庄共506份粪便样本进行检测，基图布卢的感染率为40.3%，平均每克粪便虫卵数（epg）为187个，而在布贡加分别为32.4%和126 epg。两个村庄曼氏血吸虫的中间宿主螺类，基图布卢有2750只粗短双脐螺，布贡加有1268只。但在基图布卢村庄附近，有185只费氏双脐螺呈小范围局部种群分布。对来自两个村庄的4018只粗短双脐螺和185只费氏双脐螺进行的尾蚴筛查试验显示，基图布卢的哺乳动物和非哺乳动物尾蚴的螺感染率均高于布贡加。讨论了两个村庄居民和中间宿主螺类种群感染率的差异。
