Abstract: Introduction: Medical Significance of H. pylori Martin J. Blaser Detection of H. pylori Infection by Biopsy Urease, Histology, and Culture Stewart Goodwin Serology and Urea Breath Test in the Diagnosis of H. pylori Infection Peter R. Hawtin The Detection of H. pylori by the Polymerase Chain Reaction Nicholas P. Mapstone PCR for the Detection of H. pylori in Gastric Juice Aspirates and Environmental Water Samples Stephen B. Fritz and T. Ulf Westblom In Vitro Susceptibility Testing of H. pylori, Alistair McLaren. Defined Media for H. pylori David J. Reynolds Studies of Respiration in H. pylori Roger J. Miles and Huai-Tzu Chang Use of NMR to Study H. pylori Metabolism Peter A. Chalk, Andrew D. Roberts, Alistair A. Davison, David J. Kelly, and Peter J. White Isolation of H. pylori Genomic DNA and Restriction Analysis Robert J. Owen and Jane Bickley Ribosomal RNA Gene Restriction Pattern Analysis (Ribotyping) of H. pylori Wee Tee Differentiation of H. pylori Strains Using PCR RFLP Harry L. T. Mobley and Paul A. Foxall PCR-DNA Sequence Typing Agnes Labigne H. pylori DNA Fingerprinting Using the Arbitrarily Primed PCR (AP-PCR) or Random Amplified Polymorphic DNA (RAPD) Method Douglas E. Berg, Janaki Lelwala-Guruge, Engin T. Incecik, Kalpana Srivastava, and Natalia S. Akopyants Molecular Methods for Detecting Ulcerogenic Strains of H. pylori John C. Atherton H. pylori DNA Transformation by Natural Competence and Electroporation Zhongming Ge and Diane E. Taylor Random Mutagenesis of the H. pylori Genome Agnes Labigne Construction of a Genomic Map of H. pylori by Pulsed-Field Gel Electrophoresis (PFGE) Nicholas Chang, Qin Jiang, and Diane E. Taylor Molecular Characterization of H. pylori SurfaceAntigens Peter Doig, Paul W. O'Toole, and Trevor J. Trust Isolation and Characterization of Porins from H. pylori Robert E. W. Hancock and Maurice Exner Methods for the Identification of H. pylori Host Receptors Thomas Boren, Torkel Wadstrom, Staffan Normark, Jeffrey I. Gordon, and Per G. Falk Host Responses to H. pylori: Molecular Analysis of Cytokine Gene Expression Susan M. Farmery and Jean E. Crabtree Nonprimate Animal Models of H. pylori Infection Andrew A. McColm The Nonhuman Primate Model for H. pylori Infection Andre Dubois and Douglas E. Berg Index