Shannon T. Ferrell, Katherine A. Pope, Chris Gardiner, Daniel S. Bradway, Dana L. Ambrose, Robert A. MacLean, Terry M. Norton, Nancy L. Stedman, Michael M. Garner<sup>*


*</sup>From the Animal Health Department, Fort Worth Zoo, 1989 Colonial Parkway, Fort Worth, Texas 76110, USA (Ferrell, Pope); Registry of Veterinary Pathology, Armed Forces Institute of Pathology, Washington, D.C. 20306, USA (Gardiner); Washington Animal Disease Diagnostic Lab, Pullman, Washington 99164, USA (Bradway); Athens Veterinary Diagnostic Laboratory, University of Georgia, Athens, Georgia 30602, USA (Ambrose, Stedman); Audubon Zoo, 6500 Magazine Street, New Orleans, Louisiana 70118, USA (MacLean); St. Catherine's Island Foundation, 182 Camellia Road, Midway, Georgia 31320, USA (Norton); and Northwest ZooPath, 654 West Main, Monroe, Washington 98272, USA (Garner). Correspondence should be directed to Dr. Ferrell (sferrell@fortworthzoo.org).