Oyerinde J P
Ann Trop Med Parasitol. 1978 Aug;72(4):363-7. doi: 10.1080/00034983.1978.11719330.
An estimate of the proportion of infections with Ancylostoma duodenale and Necator americanus by the examination of larvae collected from the stools of 220 persons infected with hookworm was made. Fifty-nine per cent of the infections were due to N. americanus only: A. duodenale always occurred in association with N. americanus. In 12% of the infections it is suggested that there were approximately three female A. duodenale to 95 female N. americanus. The highest numbers of A. duodenale in mixed infections (28 female A. duodenale with 45 female N. americanus) occurred in only 1% of the infections. Evidence is given that egg size can be important in the differentiation of the two species. A method of calculating the proportion of the two hookworms, and hence of other intestinal nematodes, in mixed infections in an individual as well as in the general population, is also described.
通过检查从220名感染钩虫者粪便中收集的幼虫，对十二指肠钩口线虫和美洲板口线虫感染比例进行了估计。59%的感染仅由美洲板口线虫引起：十二指肠钩口线虫总是与美洲板口线虫同时出现。在12%的感染中，提示十二指肠钩口线虫雌虫与美洲板口线虫雌虫的比例约为3:95。混合感染中十二指肠钩口线虫数量最多的情况（28条十二指肠钩口线虫雌虫与45条美洲板口线虫雌虫）仅出现在1%的感染中。有证据表明，虫卵大小在区分这两个物种时可能很重要。还描述了一种计算个体以及一般人群中混合感染时两种钩虫以及其他肠道线虫比例的方法。
