Spatial Distribution of Free-Of-Charge Pathology Submissions to the California Animal Health and Food Safety Laboratories During the Exotic Newcastle Outbreak in 2002–2003

GUSTAVO SOBERANO, TIM E. CARPENTER,* CAROL CARDONA, AND BRUCE CHARLTON Masters of Preventive Veterinary Medicine Program, University of California, Davis, California 95616, U.S.A. Center for Animal Disease Modeling and Surveillance (CADMS), Department of Medicine & Epidemiology, University of California, Davis, California 95616, U.S.A. VM: Extension and Department of Population Health & Reproduction, University of California, Davis, California 95616, U.S.A. California Animal Health and Food Safety Laboratory System, Turlock Branch, Turlock, California 95381, U.S.A.