The Animal Health Diagnostic Center (AHDC) at Cornell University offers a wide array of testing capabilities to detect markers of health and disease in animals. It is one of the most comprehensive veterinary diagnostic laboratories in the country, whose faculty provide subject matter expertise and oversight of more than 900 individual assays, performed by 200 highly trained technical staff. The AHDC services include large and small-scale testing for academic and industry research and development. Our sophisticated and comprehensive diagnostic capabilities include anatomic pathology (necropsy and histopathology services), clinical pathology (hematology, hemostasis, cytology, endocrinology), nutritional and toxicology testing. Infectious disease sections span all relevant disciplines including bacteriology, mycology, parasitology, and virology with a wide range of culture capabilities and available cell lines. The molecular diagnostics laboratory has high-throughput capacity for identifying defined and novel pathogenic and non-pathogenic organisms, mutation detection for genetic disease, and whole genome sequencing of bacterial isolates. The AHDC excels in assay customization and integrated diagnostic support, with flexibility to meet the needs of clients engaged in basic and applied research and development.