根据信息收集规则（ICR），服务于10万人或以上的大型公共供水系统需要监测水源中的隐孢子虫。在某些情况下，还需要对成品水进行隐孢子虫监测。ICR不要求公开隐孢子虫发生的通知，因为ICR要求的监测数据将向公众提供。美国环境保护局（USEPA）发布了可选语言，要求水系统在报告成品水中已检测到或可能检测到隐孢子虫的公告中包含该语言。 本文总结了美国环保局建议纳入公共卫生咨询的信息。还介绍了美国环保局关于隐孢子虫的可选公告语言。包括2个参考文献。

Under the Information Collection Rule (ICR), large public water systems serving 100,000 people or more are required to monitor source water for Cryptosporidium. In some circumstances, finished water monitoring for Cryptosporidium is also required. Public notification for Cryptosporidium occurrence is not required under the ICR because monitoring data required by the ICR will be made available to the public. The US Environmental Protection Agency (USEPA) has issued optional language that water systems may include in public notices reporting that Cryptosporidium has been or may be detected in finished water. This paper summarizes the information that the USEPA recommends be included in a public health advisory. USEPA's optional public notice language for Cryptosporidium is also presented. Includes 2 references.