Lara-Aguilera R, Aguilar-Bucio M T, Martínez-Toledo J L
Departamento de Medicina Preventiva, Hospital Infantil de Morelia, Michoacán.
Bol Med Hosp Infant Mex. 1990 Mar;47(3):153-9.
92.3% schoolchildren aged 6-13 years of a mexican rural village, suspected foci of Taenia solium cysticercosis were screened for intestinal parasites with the main purpose to know the infection rate by taeniasis. An stool sample was collected to schoolchildren of the village and 95.4% of a urban private school as comparative group. Laboratory examinations were performed with the most accurate technics, included microscopies with an ocular micrometer. The general parasitation rate was 4 times higher in the rural village, but the percentages of Taenia spp. infection were 0.6% both of them. Entamoeba histolytica was observed 1.8% and 7.2% in the city and rural village, respectively. All the cases with taeniasis passed T. saginata after treatment with niclosamide. Negative results were obtained with the same chemotherapy in a randomly selected group of 112 schoolchildren which previous stool examination was reported negative. Neither taeniasis were demonstrated in 94 adult persons. These data are suggestive of the great variability on the transmission rates of T. solium cysticercosis in endemic areas and illustrate the faced methodological problems to confirm the diagnosis of taeniasis. By other hand support the hypothesis that estimates of infection rates with E. histolytica have been overdiagnosed in the country. Taeniasis-cysticercosis; schoolchildren; Taenia saginata; amebiasis.
对墨西哥一个乡村6至13岁的学童（疑似猪带绦虫囊尾蚴病疫源地）进行肠道寄生虫筛查，主要目的是了解牛带绦虫病的感染率。采集了该乡村学童的粪便样本，并采集了95.4%的城市私立学校学童的粪便样本作为对照组。采用最精确的技术进行实验室检查，包括使用目镜测微计的显微镜检查。乡村的总体寄生虫感染率高出4倍，但两个组中牛带绦虫属的感染率均为0.6%。在城市和乡村，溶组织内阿米巴的检出率分别为1.8%和7.2%。所有牛带绦虫病病例经氯硝柳胺治疗后排出牛肉绦虫。在之前粪便检查报告为阴性的112名随机选择的学童中，相同化疗方法得到阴性结果。94名成年人中均未检出牛带绦虫病。这些数据表明，流行地区猪带绦虫囊尾蚴病的传播率差异很大，并说明了确诊牛带绦虫病所面临的方法学问题。另一方面，支持该国溶组织内阿米巴感染率估计存在过度诊断的假设。牛带绦虫病-囊尾蚴病；学童；牛肉绦虫；阿米巴病。
