1. Georgia Poultry Laboratory, PO Box 20,4457 Oakwood Road, Oakwood, GA 30566
2. Department of Veterinary Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602
3. Zoonotic Diseases Laboratory, Livestock and Poultry Sciences Institute, Agricultural Research Service, US Department of Agriculture, Bldg. 1040, BARC-East, 10300 Baltimore Avenue, Beltsville, MD 20705
4. Tugaloo University, 134 River Park Drive, Jackson, MS 39202