Embil J A, Pereira L H, White F M, Garner J B, Manuel F R
Am J Trop Med Hyg. 1984 Jul;33(4):595-8. doi: 10.4269/ajtmh.1984.33.595.
A survey of Ascaris lumbricoides prevalence was conducted during 1976 and 1977 in a rural community of Nova Scotia. Of 431 individuals tested, 121 (28.1%) were infected. All those infected were under 20 years of age. There was no difference in the rate of infection between households with pigsties and those without. A significantly higher prevalence rate was found in homes where feces were disposed of in the yard and water was obtained from a dug well. In a concurrent random survey taken in the Halifax metropolitan area, none of the 276 individuals tested was infected.
1976年至1977年期间，在新斯科舍省的一个农村社区开展了一项关于蛔虫感染率的调查。在接受检测的431人中，有121人（28.1%）受到感染。所有感染者均未满20岁。有猪圈的家庭和没有猪圈的家庭在感染率上没有差异。在粪便排在院子里且用水取自挖井的家庭中，感染率明显更高。在哈利法克斯都会区同时进行的一项随机调查中，接受检测的276人无一感染。
