1. California Veterinary Diagnostic Laboratory System (CVDLS), University of California, School of Veterinary Medicine, CVDLS San Bernardino Branch, 105 W. Central Ave., San Bernardino, CA 92412
2. Parasitic Diseases Branch, Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control, Atlanta, GA, 30341–3724
3. CVDLS Davis, W. Health Sciences Dr., PO Box 1770, Davis, CA 95617