Ciesielski S, Handzel T, Sobsey M
Department of Parasitology and Laboratory Practice, School of Public Health, University of North Carolina, Chapel Hill 27599.
Am J Public Health. 1991 Jun;81(6):762-4. doi: 10.2105/ajph.81.6.762.
A two-year study of the microbiological quality of drinking water in 27 randomly selected North Carolina migrant labor camps yielded total and fecal coliform prevalences of 44 percent and 26 percent, respectively in 1988 and similar but higher prevalences in 1989. Preoccupancy testing by county sanitarians had found virtually no total coliform contamination. These findings suggest that a potential source of contamination existed and that current testing protocols which rely on preoccupancy testing may be inadequate.
一项针对北卡罗来纳州27个随机选取的流动劳工营地饮用水微生物质量的为期两年的研究发现，1988年总大肠菌群和粪大肠菌群的患病率分别为44%和26%，1989年患病率与之相似但更高。各县卫生员进行的入住前检测几乎未发现总大肠菌群污染。这些发现表明存在潜在污染源，且目前依赖入住前检测的检测方案可能并不充分。
