PDF(Pubmed)
Abstract：
During July-September 2023, an outbreak of Shiga toxin-producing Escherichia coli O157:H7 illness among children in city A, Utah, caused 13 confirmed illnesses; seven patients were hospitalized, including two with hemolytic uremic syndrome. Local, state, and federal public health partners investigating the outbreak linked the illnesses to untreated, pressurized, municipal irrigation water (UPMIW) exposure in city A; 12 of 13 ill children reported playing in or drinking UPMIW. Clinical isolates were genetically highly related to one another and to environmental isolates from multiple locations within city A\'s UPMIW system. Microbial source tracking, a method to indicate possible contamination sources, identified birds and ruminants as potential sources of fecal contamination of UPMIW. Public health and city A officials issued multiple press releases regarding the outbreak reminding residents that UPMIW is not intended for drinking or recreation. Public education and UPMIW management and operations interventions, including assessing and mitigating potential contamination sources, covering UPMIW sources and reservoirs, indicating UPMIW lines and spigots with a designated color, and providing conspicuous signage to communicate risk and intended use might help prevent future UPMIW-associated illnesses.
摘要：
在2023年7月至9月期间，A市儿童中爆发了产志贺毒素的大肠杆菌O157：H7疾病，犹他州,导致13例确诊疾病；7名患者住院，包括两名溶血性尿毒综合征.当地,state,联邦公共卫生合作伙伴调查了这次疫情，将这些疾病与未经治疗联系起来，加压,城市A的市政灌溉水（UPMIW）暴露；13名患病儿童中有12名报告在玩或喝UPMIW。临床分离株在遗传上彼此高度相关，并且与来自城市A的UPMIW系统中多个位置的环境分离株高度相关。微生物源追踪,一种指示可能的污染源的方法，确定鸟类和反刍动物是UPMIW粪便污染的潜在来源。公共卫生和城市官员发布了有关疫情的多份新闻稿，提醒居民UPMIW并非用于饮酒或娱乐。公共教育和UPMIW管理和运营干预措施，包括评估和减轻潜在污染源，涵盖UPMIW来源和水库，用指定的颜色指示UPMIW线和接头，并提供明显的标牌来传达风险和预期用途可能有助于预防未来与UPMIW相关的疾病。
