世界上的许多地方都要求严格的检测标准来进行检测 确保饮用水安全。然而，有时甚至是水 通过严格测试并符合 传统的微生物水质指标可能含有病原体。 其中最常见的是贾第虫和隐孢子虫 一般可引起各种胃肠道疾病 人口尽管这些疾病通常持续时间很短 而且对大多数人来说并不严重，这些微生物会导致生命危险 包括儿童在内的高危人群的状况 老年人和免疫系统受损的人。 这种病原体的存在可以抵抗常规的氯 消毒促使作者进一步研究这个话题。这个 低估水传播疾病需要 更好的监控和报告系统，以及充分的 病原体或替代物的检测。本文提供了额外的 设计和运营污水处理厂的激励措施 包含多个障碍。正如作者所说，如果 手术之前没有进行有效的身体检查 去除颗粒结合病原体，健康风险将仅限于 部分减弱。 包括42个参考文献和表格。

Many parts of the world require strict testing standards to ensure safe drinking water. However, sometimes even water that passes stringent tests and that is in compliance with conventional microbial water quality indicators may host pathogens. The most common of these are Giardia and Cryptosporidium, which can cause a variety of gastrointestinal maladies in the general population. Although these illnesses are usually of short duration and are not serious to most people, these organisms can cause life threatening conditions in at-risk populations, including children, the elderly, and those with compromised immune systems. This existence of pathogens that resist regular chlorine disinfection led the authors to further research this topic. The underestimation of waterborne diseases calls for the need for better surveillance and reporting systems and also for adequate detection of pathogens or surrogates. This article provides additional incentives to design and operate treatment plants that encompass multiple barriers. As the authors purport, if disinfection procedures haven't been preceded by effective physical removal of particle-bound pathogens, health risks will be only partially abated. Includes 42 references, tables.