1. Department of Population Medicine and Diagnostic Sciences; College of Veterinary Medicine; Cornell University; Ithaca; NY; 14853; USA
2. Department of Veterinary Pathobiology; College of Veterinary Medicine and Biomedical Sciences; Texas A&M University; College Station; TX; 77843; USA
3. Bacterial Epidemiology and Antimicrobial Resistance Research Unit; U.S. Department of Agriculture, Agriculture Research Service, Richard B. Russell Research Center; Athens; GA; 30605; USA
4. Department of Pathology and Laboratory Medicine; University of California, Irvine; Irvine; CA; 92617; USA