Lim Lionel S, Varkey Prathibha, Giesen Peter, Edmonson Larry
Olmsted County Public Health Services, Division of Disease, Prevention, and Control, Rochester, MN 55904, USA.
J Environ Health. 2004 Jul-Aug;67(1):16-20, 28, 27; quiz 31-2.
On May 6, 1998, the Olmsted County Public Health Department initiated an investigation into an outbreak of diarrheal illness that had occurred among people who swam frequently at a local swimming pool. Interviews of swimmers and microbiological testing of stool samples and swimming pool filter material were conducted to determine the source of the outbreak. Twenty-six of 206 swimmers interviewed had illnesses that met the case definition. The most common symptoms were diarrhea (100 percent), abdominal cramps (81 percent), and nausea (77 percent). The median duration of symptoms was nine days. Four cases of cryptosporidiosis were confirmed by stool analysis. The outbreak was found to be associated with swimming at the pool. Public awareness-including an understanding that recreational water facilities should be avoided during diarrheal illness-and proper pool hygiene are vital in preventing cryptosporidiosis outbreaks. Health care providers also must consider testing specifically for cryptosporidiosis when a patient presents with persistent diarrhea.
1998年5月6日，奥尔姆斯特德县公共卫生部门对当地一个游泳池频繁游泳者中发生的腹泻病疫情展开调查。对游泳者进行了访谈，并对粪便样本和游泳池过滤材料进行了微生物检测，以确定疫情源头。在接受访谈的206名游泳者中，有26人患病符合病例定义。最常见的症状是腹泻（100%）、腹部绞痛（81%）和恶心（77%）。症状的中位持续时间为九天。通过粪便分析确诊了4例隐孢子虫病病例。发现此次疫情与在该游泳池游泳有关。公众意识——包括理解腹泻病期间应避免使用娱乐性水设施——以及适当的泳池卫生对于预防隐孢子虫病疫情至关重要。当患者出现持续性腹泻时，医疗服务提供者也必须考虑专门检测隐孢子虫病。
