Abstract
Escherichia coli is a globally distributed bacterium that colonizes the gut. E. coli strains can be divided into three groups: commensals, which are harmless to the host; diarrheagenic (diarrheagenic E. coli-DEC), which cause intestinal diseases; and those which cause extraintestinal infections (extraintestinal pathogenic E. coli-ExPEC). ExPEC strains are classified according to the site …