Institution: | Department of Pathobiology, University of Pennsylvania, School of Veterinary Medicine, New Bolton Center, Kennett Square, PA;Department of Virology, Faculty of Veterinary Medicine, University of Sadat, El Beheira Governorate, Sadat City, Egypt;Pennsylvania Game Commission, Bureau of Wildlife Management, Harrisburg, PA;Northeast Wildlife Disease Cooperative, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, PA |