INTERNATIONAL COUNCIL FOR LABORATORY ANIMAL SCIENCE ICLAS ANIMAL QUALITY NETWORK PEP SPECIMEN PRODUCTION PEP Specimen Producer Laboratories Central Institute for Experimental Animals, (CIEA), Kawasaki, Japan Charles River, Research Animal Diagnostic Services, Wilmington, USA IDEXX RADIL, Missouri, USA Microbiological Diagnostics, German Cancer Research Centre, Heidelberg, Germany QM Diagnostics, Nijmegen, the Netherlands Production and Characterization of PEP Specimens All specimens are generated under strict conditions and rigorously characterized. Infectious agents are obtained from known sources and sequenced to confirm identity. Experimental animals are then inoculated and the serum and relevant tissues are collected and aliquoted for use as standardized specimens. Aliquoted specimens are evaluated by two laboratories to confirm quality PEP Specimen Quality Control Acceptance Criteria: Pure and Potent Immune Serum –Seropositive to inoculated pathogen only –Moderate to strong reaction by standard assays Infectious Specimen –Free of extraneous pathogens –Easily detected concentration of pathogen