Autor: Agustín Estrada-Peña

Ivan G. Horak is an Emeritus Professor in the Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa. Heloise Heyne is a Senior Technician and the Curator of the Gertrud Theiler Tick Museum, in the section Epidemiology, Parasites & Vectors, Agricultural Research Council–Onderstepoort Veterinary Institute, Onderstepoort, South Africa. G. James Gallivan Ottawa, Ontario, Canada. Formerly Department of Biology, University of Swaziland, P/B Kwaluseni, Swaziland.  Roy Williams is a Senior Researcher in the section Epidemiology, Agricultural Research Council–Onderstepoort Veterinary Institute, Onderstepoort, South Africa. Arthur M. Spickett is a retired Senior Researcher in the section Epidemiology, Parasites & Vectors at the Agricultural Research Council-Onderstepoort Veterinary Institute, Onderstepoort, South Africa. J. Dürr Bezuidenhout is a retired Veterinary Researcher and Deputy Director of the Agricultural Research Council-Onderstepoort Veterinary Institute, Onderstepoort, South Africa. Agustín Estrada-Peña is a Professor in the Department of Parasitology, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain.