1. California Animal Health and Food Safety Laboratory System, Turlock Branch, University of California, Davis, 1550 North Soderquist Road, Turlock, CA 95380
2. Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, 4008 VM3B, Davis, CA 95616
3. California Animal Health and Food Safety Laboratory System, Davis Branch, University of California, Davis, 620 Health Science Drive, Davis, CA 95616