and role of this pathogen. Both basic science and clinical research with actual practical consequences are taken into account. The chapters target microbiology, epidemiology, genetics, biochemistry, interactions with the immune system, signal transduction, pathogenic mechanisms in the gastroduodenal mucosa, gastric disease development, and therapy including antibiotics or probiotics treatment as well as vaccination strategies. This book is an important reference not only for clinicians but also microbiologists. It provides in a single volume an up-to-date summary of our current knowledge of this microbe and the multiple ways in which it impacts upon public health in all parts of the world.