1. Laboratório de Patologia Comparada de Animais Selvagens, Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, São Paulo, 05508-270, Brazil.
2. Veterinary Pathology Service, Joint Pathology Center, 606 Stephens Sitter Avenue, Silver Spring, Maryland 20910.
3. Warnell School of Forestry and Natural Resources, The University of Georgia, 180 E. Green Street, Athens, Georgia 30602.
4. Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, 589 D. W. Brooks Drive, Athens, Georgia 30602.
5. Associação R3 Animal, Florianópolis, Santa Catarina, 88061-500, Brazil.
6. Centro de Recuperação de Animais Marinhos, Universidade Federal do Rio Grande, Rio Grande, Rio Grande do Sul, 92200-580, Brazil.