Contents -- Contributors -- Foreword: The Accidental Ecologist -- Preface -- 1. Introduction: a Personal Homage to Tom Whittam -- I. BACTERIAL EVOLUTION AND THEORY -- 2. Population Geneticists Discover Bacteria and Their Genetic/ Molecular Epidemiology -- 3. The Impact of Horizontal Genetic Exchange on Bacterial Population Structure: Insights from the Genera Neisseria and Campylobacter -- 4. The Genomics of Escherichia coli and Beyond -- 5. Are Species Cohesive? A View from Bacteriology -- II. ESCHERICHIA COLI AND MOLECULAR EPIDEMIOLOGY OF PATHOGENIC STRAINS -- 6. The Niche of Escherichia coli -- 7. Molecular Epidemiology and Population Genetics of Extraintestinal Pathogenic Escherichia coli -- 8. Epidemiology of Argentinean Shiga Toxin-Producing Escherichia coli -- III. COMMON THEMES AMONG ESCHERICHIA COLI PATHOGENS -- 9. Gene Acquisition and Loss in the Phylogenetic Lineages of the Invasive Escherichia coli -- 10. Fitness Islands in Uropathogenic Escherichia coli -- 11. Genomic and Virulence Heterogeneity of Enteroaggregative Escherichia coli -- 12. Shiga Toxin-Producing Escherichia coli -- IV. THE EVOLUTIONARY ECOLOGY OF ENTEROHEMORRHAGIC ESCHERICHIA COLI -- 13. The Evolutionary Model of Escherichia coli O157:H7 -- 14. Evolutionary Emergence and Impact of Atypical Escherichia coli O157:H7 Strains -- 15. Thomas Whittam, Shiga Toxin-Producing Escherichia coli, and the Clinical Consequences of Clonality -- 16. Sorbitol-Fermenting Enterohemorrhagic Escherichia coli O157:H ̄-- 17. Molecular Evolution of Enterohemorrhagic Escherichia coli and Application to Epidemiology -- 18. Escherichia coli O157:H7 in Reservoir Hosts -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- K -- L -- M -- N -- O -- P -- R -- S -- T -- U -- V -- W -- Y -- Z.