Part I. Reviews Specificity and Performance of Diagnostic PCR Assays Konrad Sachse Pre-PCR Processing of Samples Peter Radstrom, Rickard Knutsson, Petra Wolffs, Maria Dahlenborg, and Charlotta Lofstrom Critical Aspects of Standardization of PCR Jeffrey Hoorfar and Nigel Cook PCR Technology and Applications to Zoonotic Food-Borne Bacterial Pathogens Peter Stephensen Lubeck and Jeffrey Hoorfar Part II. Protocols Detection, Identification, and Subtyping of Actinobacillus pleuropneumoniae Joachim Frey Identification and Differentiation of Brucella abortus Field and Vaccine Strains by BaSS-PCR Darla R. Ewalt and Betsy J. Bricker Isolation of Campylobacter and Identification by PCR Mark D. Englen, Scott R. Ladely, and Paula J. Fedorka-Cray Detection and Differentiation of Chlamydiae by Nested PCR Konrad Sachse and Helmut Hotzel Detection of Toxigenic Clostridia Michel R. Popoff PCR-Based Detection of Coxiella burnetii from Clinical Samples Mustapha Berri, Nathalie Arricau-Bouvery, and Annie Rodolakis Detection and Subtyping of Shiga Toxin-Producing Escherichia coli (STEC) Peter Gallien Detection of Listeria monocytogenes Using a PCR/DNA Probe Assay Louise O'Connor Detection of Leptospira interrogans John W. Lester and Rance B. LeFebvre Detection of Pathogenic Mycobacteria of Veterinary Importance Robin A. Skuce, M. Siobhan Hughes, Malcolm J. Taylor, and Sydney D. Neill Multiplex PCR of Avian Pathogenic Mycoplasmas Mazhar I. Khan Detection and Differentiation of Ruminant Mycoplasmas Helmut Hotzel, Joachim Frey, John Bashiruddin, and Konrad Sachse Detection of Mycoplasma hyopneumoniae from Clinical Samples and Air Marylene Kobisch and Joachim Frey PCR-Detection of Hemophilus paragallinarum, Hemophilus somnus, Mannheimia (Pasteurella) hemolytica, Mannheimia spp., Pasteurella trehalosi, and Pasteurella multocida Henrik Christensen, Magne Bisgaard, Jesper Larsen, and John Elmerdahl Olsen Detection of Salmonella spp. Burkhard Malorny and Reiner Helmuth Detection of Toxoplasma gondii Jonathan M. Wastling and Jens G. Mattsson PCR-Derived Methods for the Identification of Trichinella Parasites from Animal and Human Samples Edoardo Pozio and Giuseppe La Rosa Detection of Pathogenic Yersinia enterocolitica by a Swab Enrichment PCR Procedure Rickard Knutsson and Peter Radstrom Index