1. Texas A&M Veterinary Medical Diagnostic Laboratory, 483 Agronomy Rd., College Station, Texas 77841, USA;
2. Texas A&M University, Department of Veterinary Pathobiology, 4467 TAMU, College Station, Texas 77843-4467, USA;
3. Attwater Prairie Chicken National Wildlife Refuge, PO Box 519, Eagle Lake, Texas 77434, USA;
4. Houston Zoo, Inc., 6200 Hermann Park Dr., Houston, Texas 77030, USA;
5. Texas Parks and Wildlife Department, 2805 N Navarro St., Victoria, Texas 77901, USA;
6. US Fish and Wildlife Service, 24518 FM 1431, Marble Falls, Texas 78654, USA;