1. 1Center for Animal Health and Food Safety, Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, 1354 Eckles Avenue, St. Paul, Minnesota 55108
2. 2College of Liberal Arts, Office of Information Technology, Research Support Services, University of Minnesota, 110 Anderson Hall, 257 19th Avenue South, Minneapolis, Minnesota 55455
3. 3Department of Food Science and Nutrition, University of Minnesota, 1334 Eckles Avenue, St. Paul, Minnesota 55108, USA