尽管西班牙一个军营的水中总余氯为0.2 mg/L，但仍从该军营爆发传染性肝炎的饮用水中分离出人类肠道病毒。该军营经常使用的细菌学分析显示，该军营的水中始终没有指示细菌。这项研究和其他研究支持监测病毒污染的建议，并在供水中检测到病毒时，建立更强大的水处理系统。包括20个参考文献、表格和图表。

Human enteric viruses were isolated from the potable water of a military camp in Spain that was experiencing an outbreak of infectious hepatitis, despite a total chlorine residual in the water of 0.2 mg/L. The bacteriological analysis that was routinely used by the camp showed the water to be consistently free of indicator bacteria. This and other studies support the recommendation of monitoring for viral contamination and the setting up of more powerful water treatment when viruses have been detected in the water supply. Includes 20 references, tables, figure.