Payment P, Franco E, Richardson L, Siemiatycki J
Institut Armand-Frappier, Université du Québec, Laval, Canada.
Appl Environ Microbiol. 1991 Apr;57(4):945-8. doi: 10.1128/aem.57.4.945-948.1991.
During a prospective epidemiological study of gastrointestinal health effects associated with the consumption of drinking water produced by reverse-osmosis domestic units, a correlation was demonstrated between the bacterial counts on R2A medium incubated at 35 degrees C and the reported gastrointestinal symptoms in families who used these units. A univariate correlation was found with bacterial counts on R2A medium at 20 degrees C but was confounded by the bacterial counts at 35 degrees C. Other variables, such as family size and amount of water consumed, were not independently explanatory of the rate of illness. These observations raise concerns for the possibility of increased disease associated with certain point-of-use treatment devices for domestic use when high levels of bacterial growth occur.
在一项关于家用反渗透装置生产的饮用水对胃肠道健康影响的前瞻性流行病学研究中，发现35摄氏度下在R2A培养基上培养的细菌数量与使用这些装置的家庭中报告的胃肠道症状之间存在相关性。在20摄氏度下R2A培养基上的细菌数量也发现了单变量相关性，但受到35摄氏度下细菌数量的干扰。其他变量，如家庭规模和饮水量，不能独立解释疾病发生率。这些观察结果引发了人们对家用某些终端处理设备在细菌大量生长时可能增加疾病风险的担忧。
