文章基本信息

标题：Outbreaks of Salmonella Typhimurium phage type 197 of multiple genotypes linked to an egg producer
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作者：Vicki G Slinko ; Bradley J McCall ; Russell J Stafford 等
期刊名称：Communicable Diseases Intelligence
印刷版ISSN：1447-4514
电子版ISSN：1445-4866
出版年度：2009
卷号：33
期号：4
页码：419-425
出版社：Government Department of Health and Ageing
摘要：This paper describes outbreaks of Salmonella Typhimurium phage type 197 (STm197) linked to eggs from the farm of a single egg producer. Epidemiological and microbiological investigations (genotyping by multiple locus variable number tandem repeats analysis [MLVA]) identified outbreaks of STm197 with the same or closelyrelated MLVA profiles in a series of restaurants across Brisbane over 2 months. Environmental health investigations revealed that these restaurants were supplied with eggs from the same egg producer and that cross-contamination may have contributed to the outbreak. Environmental swabs taken from restaurant kitchens and the farm of the egg producer identified a number of salmonellas including STm197, many with MLVA profiles matching or closely related to the human strains from outbreak cases. A case-to-case comparison study showed a significant association between illness with 1 MLVA type and attending a restaurant during the 5 days before onset of illness (odds ratio [OR] 8.1, 95% confidence interval [CI] 1.8, 35.4). MLVA has become a valuable tool for S . Typhimurium surveillance and outbreak investigation. This outbreak further justifies the Commonwealth Government’s decision to develop a draft national primary production and processing standard for eggs and egg products to address food safety risks posed by cracked and dirty eggs.
关键词：eggs; Salmonella Typhimurium phage;type 197; outbreak; genotyping; epidemiology;environmental health