Washington: A probiotic bacterium which is used to treat irritable bowel syndrome has been found to soothe gut bacterial infections caused by salmonella, paving the way for potential relief from foodborne illnesses that affect millions of people annually, a new study has revealed.Manuela Raffatellu, assistant professor of microbiology and molecular genetics, and colleagues at UC Irvine and the University of Washington identified how a probiotic strain of E. coli reduces salmonella colonization by competing with this pathogen for iron, an essential nutrient that salmonella acquires in the gut in order to replicate at high levels.In fact, the researchers discovered that the E. coli strain called Nissle 1917 acquires iron more efficiently than does salmonella.
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