Currie Andrea, Farber Jeffrey M, Nadon Céline, Sharma Davendra, Whitfield Yvonne, Gaulin Colette, Galanis Eleni, Bekal Sadjia, Flint James, Tschetter Lorelee, Pagotto Franco, Lee Brenda, Jamieson Fred, Badiani Tina, MacDonald Diane, Ellis Andrea, May-Hadford Jennifer, McCormick Rachel, Savelli Carmen, Middleton Dean, Allen Vanessa, Tremblay Francois-William, MacDougall Laura, Hoang Linda, Shyng Sion, Everett Doug, Chui Linda, Louie Marie, Bangura Helen, Levett Paul N, Wilkinson Krista, Wylie John, Reid Janet, Major Brian, Engel Dave, Douey Donna, Huszczynski George, Di Lecci Joe, Strazds Judy, Rousseau Josée, Ma Kenneth, Isaac Leah, Sierpinska Urszula
1 Centre for Foodborne, Environmental, and Zoonotic Infectious Diseases , Public Health Agency of Canada, Guelph, Ontario, Canada .
2 Bureau of Microbial Hazards , Health Canada, Ottawa, Ontario, Canada .
Foodborne Pathog Dis. 2015 Aug;12(8):645-52. doi: 10.1089/fpd.2015.1939. Epub 2015 Jun 3.
A multi-province outbreak of listeriosis occurred in Canada from June to November 2008. Fifty-seven persons were infected with 1 of 3 similar outbreak strains defined by pulsed-field gel electrophoresis, and 24 (42%) individuals died. Forty-one (72%) of 57 individuals were residents of long-term care facilities or hospital inpatients during their exposure period. Descriptive epidemiology, product traceback, and detection of the outbreak strains of Listeria monocytogenes in food samples and the plant environment confirmed delicatessen meat manufactured by one establishment and purchased primarily by institutions was the source of the outbreak. The food safety investigation identified a plant environment conducive to the introduction and proliferation of L. monocytogenes and persistently contaminated with Listeria spp. This outbreak demonstrated the need for improved listeriosis surveillance, strict control of L. monocytogenes in establishments producing ready-to-eat foods, and advice to vulnerable populations and institutions serving these populations regarding which high-risk foods to avoid.
2008年6月至11月，加拿大多个省份爆发了李斯特菌病疫情。57人感染了由脉冲场凝胶电泳确定的3种相似疫情菌株中的1种，24人（42%）死亡。57名感染者中有41人（72%）在接触期间是长期护理机构的居民或住院患者。描述性流行病学、产品追溯以及在食品样本和工厂环境中检测单核细胞增生李斯特菌的疫情菌株证实，由一家企业生产、主要由机构购买的熟食肉类是此次疫情的源头。食品安全调查发现，工厂环境有利于单核细胞增生李斯特菌的引入和增殖，并且持续受到李斯特菌属的污染。此次疫情表明，需要加强李斯特菌病监测，严格控制即食食品生产企业中的单核细胞增生李斯特菌，并向弱势群体和为这些群体服务的机构提供关于应避免食用哪些高风险食品的建议。
