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Appl. Environ. Microbiol. doi:10.1128/AEM.02607-06
Copyright (c) 2007, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.

Multiple environmental stress tests show no common phenotypes shared amongst contemporary epidemic strains of Salmonella enterica

Department of Veterinary Microbiology and Pathology, Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington

^* To whom correspondence should be addressed. Email: drcall{at}wsu.edu.

	Abstract

Phenotypic traits of coexisting epidemic and nonepidemic strains of Salmonella enterica serovars Typhimurium and Newport were compared. Different stress conditions were relatively more or less favorable for epidemic strains. Transcriptional analysis identified specific upregulated genes during defined stress conditions, but there were no common traits shared by epidemic serovars.