Téllez A, Morales W, Rivera T, Meyer E, Leiva B, Linder E
Department of Microbiology and Parasitology Faculty of Medicine, National University, León, Nicaragua.
Acta Trop. 1997 Sep 10;66(3):119-25. doi: 10.1016/s0001-706x(97)00037-5.
Intestinal parasites appear to be prevalent in Nicaragua, which motivated a more extensive prevalence study in which socioeconomic conditions such as degree of crowding, quality of water supply, type of floor and disposal of excretion, were considered. The study was performed on 1267 stool samples from about 8% of the citizens of the city of León. The overall prevalence of intestinal pathogenic parasites among the 1267 individuals was found to be 47.2%. The prevalence of Entamoeba histolytica/dispar was 18.6% followed by Giardia (15.9%) and Ascaris (13.4%). Other helminths such as hookworms and Strongyloides sp. were found at very low rates. Giardia, in contrast to worm infections, was prevalent already in children under 5 years of age. E. histolytica/dispar increased with age and remained high. Of 595 individuals with intestinal parasites 81% were living in 'poor' conditions and in 13 clusters of households, a lower prevalence of parasites was seen in households characterised as having good socioeconomic conditions. However, several variables appear to be important in determining the prevalence of the individual intestinal protozoa and helminths encountered.
肠道寄生虫在尼加拉瓜似乎很普遍，这促使开展了一项更广泛的患病率研究，该研究考虑了诸如拥挤程度、供水质量、地面类型和排泄物处理等社会经济状况。该研究对莱昂市约8%的市民的1267份粪便样本进行了检测。在这1267个人中，肠道致病寄生虫的总体患病率为47.2%。溶组织内阿米巴/迪斯帕内阿米巴的患病率为18.6%，其次是贾第虫（15.9%）和蛔虫（13.4%）。其他蠕虫如钩虫和类圆线虫的检出率很低。与蠕虫感染不同，贾第虫在5岁以下儿童中就已普遍存在。溶组织内阿米巴/迪斯帕内阿米巴的患病率随年龄增长而上升且居高不下。在595名有肠道寄生虫的个体中，81%生活在“贫困”条件下，在13个家庭群组中，社会经济条件良好的家庭中寄生虫患病率较低。然而，在确定所发现的个体肠道原生动物和蠕虫的患病率方面，有几个变量似乎很重要。
