1. Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, The University of Tennessee, 2407 River Drive, Knoxville, Tennessee 37996, USA
2. College of Veterinary Medicine, The University of Tennessee, 2407 River Drive, Knoxville, Tennessee 37996, USA
3. Center for Wildlife Health, Department of Forestry, Wildlife, and Fisheries, University of Tennessee Institute of Agriculture, 2505 Chapman Drive, Knoxville, Tennessee 37996, USA