Free-living amoebae represent a potential reservoir and predator of Salmonella enterica. Through the use of type III secretion system (T3SS) mutants and analysis of transcription of selected T3SS genes, we demonstrated that the Salmonella pathogenicity island 2 is highly induced during S. enterica serovar Typhimurium infection of Acanthamoeba polyphaga and is essential for survival within amoebae.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2655480PMC
http://dx.doi.org/10.1128/AEM.02033-08DOI Listing

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