Institution: | a Department of Veterinary Microbiology and Parasitology, Sokoine University of Agriculture, P.O. Box 3019, Morogoro, Tanzania b Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P.O. Box 3021, Morogoro, Tanzania c Department of Biostatistics and Epidemiology, College of Public Health, University of Oklahoma, 801 NE 13th St., Room 303, Oklahoma City, OK 73104, USA d WHO/FAO Collaborating Center for Research and Training on Emerging and Other Parasitic Zoonoses, Danish Centre for Experimental Parasitology, The Royal Veterinary and Agricultural University, Dyrlægevej 100-DK-1870, Frederiksberg C, Denmark |