Phase variable switching of in vivo and environmental phenotypes of Salmonella typhimurium.

Abstract excerpt

Previously it was shown that S. typhimurium strain 798, which is known to cause persistent asymptomatic infections in pigs, exists in two phenotypes. One phenotype, which is called adhesive, was shown to produce pili, is adhesive to porcine enterocytes, is readily phagocytized, and then survives intracellularly in phagocytes. The other phenotype, termed non-adhesive, does not produce pili, does not attach to...

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