Affiliation: | Intracellular Pathogens Research Laboratory and the Veterinary Teaching Hospital, Department of Clinical Sciences, North Carolina State University, Raleigh, NC;;College of Veterinary Medicine, North Carolina State University, Raleigh, NC;;College of Veterinary Medicine, Auburn University, Auburn, AL;and;Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA |