The genomes of Escherichia coli K-12 and pathogenic E. coli / Nicole T. Perna, Jeremy D. Glasner, Valerie Burland and Guy Plunkett III -- Evolution of pathogenic Escherichia coli / James R. Johnson -- Enteropathogenic Escherichia coli / T. Eric Blank, Jean-Philippe Nougayrède and Michael S. Donnenberg -- Enterohemorrhagic and other shiga toxin-producing Escherichia coli / Cheleste M. Thorpe, Jennifer M. Ritchie and David W.K. Acheson -- Enterotoxigenic Escherichia coli / Eric A. Elsinghorst -- Enteroaggregative and diffusely adherent Escherichia coli / James P. Nataro and Theodore Steiner -- Shigella and enteroinvasive Escherichia coli : paradigms for pathogen evolution and host-parasite interactions / William A. Day and Anthony T. Maurelli -- Uropathogenic Escherichia coli / Farah Bahrani-Mougeot, Nereus W. Gunther IV, Michael S. Donnenberg and Harry L.T. Mobley -- Meningitis-associated Escherichia coli / Kwang Sik Kim -- Adhesive pili of the Chaperone-Usher family / James G. Bann, Karen W. Dodson, Carl Frieden and Scott J. Hultgren -- Type IV pili / W. Schreiber and Michael S. Donnenberg -- The LEE-encoded Type III secretion system in EPEC and EHEC : assembly, function, and regulation / J. Adam Crawford, T. Eric Blank and James B. Kaper -- Hemolysin / Vassilis Koronakis and Colin Hughes -- Capsule and lipopolysaccharide / Thomas A. Russo