MMWR Morb Mortal Wkly Rep. 1996 May 31;45(21):437-9.
On July 5, 1995, the Winnebago County Health Department (WCHD) in northern Illinois received a report from the local hospital of five cases of Escherichia coli O157:H7 infection among children who resided in Rockford. Interviews of the children's parents revealed no common food source; however, on June 24-25, they all had visited an Illinois state park with a lake swimming beach. On July 6, the Illinois Department of Public Health (IDPH) closed the swimming beach because of suspected transmission of infection through lake water. WCHD and IDPH investigated the outbreak to assess risk factors for illness and determine the source of infection. This report summarizes the findings of the investigation, which indicate that ingesting contaminated and untreated lake water can result in infection.
1995年7月5日，伊利诺伊州北部的温尼贝戈县卫生局（WCHD）收到当地医院的报告，称居住在罗克福德的儿童中有5例感染了大肠杆菌O157:H7。对这些儿童家长的访谈显示，没有共同的食物来源；然而，在6月24日至25日，他们都去过伊利诺伊州的一个有湖泊游泳海滩的州立公园。7月6日，伊利诺伊州公共卫生部（IDPH）关闭了该游泳海滩，因为怀疑湖水会传播感染。WCHD和IDPH对此次疫情进行了调查，以评估发病的风险因素并确定感染源。本报告总结了调查结果，结果表明摄入受污染且未经处理的湖水会导致感染。
