Rep B H
Trop Geogr Med. 1975 Jun;27(2):169-76.
During an investigation in Dar es Salaam, Tanzania, 28 human intestinal tracts were systematically inspected on the presence of hookworms. In total, 643 hookworms (508 Necator americanus and 135 Ancylostoma duodenale) were isolated from 19 intestinal tracts. The localization of these hookworms was determined. N. americanus worms were concentrated in the duodenum and jejunum, whereas A. duodenale worms rather prefer the jejunum and proximal ileum. Some preference of hookworms for the antimesenteric site of the intestinal wall was found. The relative distance between adjoining worms in the observed hookworm populations was 3.8 cm on the average for Necator and 5.5 cm for Ancylostoma. The distribution of the sexes in the worm-population revealed no monosexual or bisexual prevalence of the hookworms.
在坦桑尼亚达累斯萨拉姆进行的一项调查中，对28份人体肠道进行了系统检查，以确定是否存在钩虫。总共从19份肠道中分离出643条钩虫（508条美洲板口线虫和135条十二指肠钩口线虫）。确定了这些钩虫的寄生部位。美洲板口线虫集中在十二指肠和空肠，而十二指肠钩口线虫更喜欢空肠和回肠近端。发现钩虫对肠壁的系膜对侧部位有一定偏好。在所观察的钩虫种群中，相邻钩虫之间的平均相对距离，美洲板口线虫为3.8厘米，十二指肠钩口线虫为5.5厘米。钩虫种群中的性别分布显示，钩虫不存在单性或双性优势。
