自来水公司的首要任务是为客户提供不含致病微生物的饮用水。在自来水中存在或可能存在病原体的情况下，州或地方公共卫生机构可能会发现有必要发布沸水咨询。该建议通常建议客户将所有用于消化的自来水煮沸。发布咨询的决定通常必须在短时间内做出，且信息不完整或不确定。 然而，这样的决定必须经过仔细考虑后才能作出。组织水传播隐孢子虫病工作组（WGWC）是为了促进定期交流有关水传播隐孢子虫病的信息，并制定了发布和撤销沸水咨询的指南。本文讨论了WGWC发布的沸水咨询指南。

A water utility's first priority is to provide their customers with drinking water that is free of disease-causing organisms. In situations in which pathogens are or may be present in tap water, the state or local public health agency may find it necessary to issue a boil-water advisory. The advisory typically recommends that customers boil all tap water intended for digestion. A decision to issue an advisory must usually be made within a short period of time and with either incomplete or inconclusive information. Nevertheless, such a decision must be made only after careful consideration. The Working Group on Waterborne Cryptosporidiosis (WGWC) was organized to promote the regular exchange of information about waterborne cryptosporidiosis and has developed guidelines for issuing and rescinding boil-water advisories. This paper discusses the boil-water advisory guidelines issued by the WGWC.