Institution: | 1.Department of Veterinary Microbiology, The Royal Veterinary and Agricultural University Frederiksberg, Denmark ;2.Departments of Veterinary Pathology, Sokoine University of Agriculture, Morogoro, United Republic of Tanzania ;3.Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P.O. Box 3021, Morogoro, United Republic of Tanzania ;4.Danish Veterinary Laboratory, Copenhagen, Denmark ; |