Pathogenic diversification of the gut commensal Providencia alcalifaciens via acquisition of a second type III secretion system

Abstract excerpt

ABSTRACT Providencia alcalifaciens is a Gram-negative bacterium found in various water and land environments and organisms, including insects and mammals. Some P. alcalifaciens strains encode gene homologs of virulence factors found in pathogenic Enterobacterales members, such as Salmonella enterica serovar Typhimurium and Shigella flexneri . Whether these genes are pathogenic determinants in P. alcalifaciens is...

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