Palmer D R, Bundy D A
Virus Reference Division, Central Public Health Laboratories, London.
East Afr Med J. 1995 Aug;72(8):527-30.
In a cross-sectional study of helminth infections in a rural village in The Gambia, West Africa, hookworm, probably Necator americanus and Ascaris lumbricoides were found to be the most prevalent helminths present at prevalence levels of 30% and 25% respectively. Other parasites present were Trichuris trichiura (2.4%) and Schistosoma mansoni (1.5%). The mean egg counts of N. americanus and A. lumbricoides in all age groups and in the total population were low. Egg counts between age and sex groups were not statistically significant. The frequency distributions of both N. americanus and A. lumbricoides were overdispersed with the majority of the sample population producing none or few eggs, and a small minority producing relatively large amounts of eggs. Large variance: mean ratios within age groups and the total study population suggested a high degree of aggregation of the parasites in this community.
在西非冈比亚一个乡村进行的一项关于蠕虫感染的横断面研究中，钩虫（可能是美洲板口线虫）和蛔虫的感染率最高，分别为30%和25%。其他存在的寄生虫有鞭虫（2.4%）和曼氏血吸虫（1.5%）。所有年龄组和总人口中美洲板口线虫和蛔虫的平均虫卵计数较低。年龄组和性别组之间的虫卵计数无统计学差异。美洲板口线虫和蛔虫的频率分布均呈过度分散，大多数样本人群未产卵或产卵很少，少数人群产卵量相对较大。方差大：年龄组和整个研究人群中的平均比率表明该社区寄生虫高度聚集。
