MMWR Morb Mortal Wkly Rep. 2009 Jan 23;58(2):25-9.
During June 2007, the Minnesota Department of Health (MDH) Public Health Laboratory examined specimens from two ill persons and identified Salmonella Montevideo isolates with the same pulsed-field gel electrophoresis pattern (PFGE pattern 1). MDH officials interviewed the patients and determined that both had been exposed to chickens originating from the same Iowa hatchery (hatchery A). In September 2007, a cluster of seven additional infections with PFGE pattern 1 was identified in North Dakota; all seven patients had been exposed to baby chicks obtained from hatchery A. A subsequent nationwide investigation identified a total of 65 S. Montevideo isolates with PFGE pattern 1 during 2007 and a likely association with exposure to live poultry purchased at feed stores or by mail order from hatchery A or seven other hatcheries in four states. Meanwhile, throughout 2007, a separate outbreak was occurring that involved infections with a different S. Montevideo strain (PFGE pattern 2). A total of 64 of those isolates were identified in 23 states during 2007. Exposure to live poultry from a hatchery in New Mexico (hatchery B) and a hatchery in Ohio (hatchery C) was associated with those infections. This report describes two distinct and unrelated outbreaks, which demonstrate the ongoing risk for Salmonella infection from live poultry purchased from agricultural feed stores or directly from mail order hatcheries. The mail order hatchery industry is a source of bird-associated human pathogens, such as Salmonella, and comprehensive infection-control strategies are needed to prevent additional illnesses resulting from live poultry contact.
2007年6月期间，明尼苏达州卫生部公共卫生实验室对两名患者的样本进行了检测，鉴定出具有相同脉冲场凝胶电泳图谱（PFGE图谱1）的蒙得维的亚沙门氏菌分离株。明尼苏达州卫生部官员对患者进行了访谈，确定两人均接触过来自爱荷华州同一家孵化场（孵化场A）的鸡。2007年9月，北达科他州又发现了7例PFGE图谱1感染病例；所有7名患者均接触过从孵化场A获得的雏鸡。随后的一项全国性调查发现，2007年共有65株PFGE图谱1的蒙得维的亚沙门氏菌分离株，并且可能与在饲料店购买或通过邮购从孵化场A或四个州的其他七个孵化场购买的活禽接触有关。与此同时，在2007年全年，另一起单独的疫情正在发生，涉及一种不同的蒙得维的亚沙门氏菌菌株（PFGE图谱2）的感染。2007年期间，在23个州共鉴定出64株该菌株的分离株。接触来自新墨西哥州的一家孵化场（孵化场B）和俄亥俄州的一家孵化场（孵化场C）的活禽与这些感染有关。本报告描述了两起不同且不相关的疫情，这表明从农业饲料店或直接从邮购孵化场购买活禽感染沙门氏菌的风险依然存在。邮购孵化场行业是与鸟类相关的人类病原体（如沙门氏菌）的一个来源，需要全面的感染控制策略来预防因接触活禽而导致的更多疾病。
