1. Parasitology and Parasitic Diseases, Animal Health Department, Veterinary Faculty; University of Extremadura; Caceres Spain
2. Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical; Universidade Nova de Lisboa, Unidade de Parasitologia Médica; Rua da Junqueira 100 1349-008 Lisboa Portugal
3. Center for Viral Zoonoses, Department of Medical Virology, Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
4. Parasitology Service National Centre for Microbiology; Carlos III Institute of Health; Majadahonda Madrid Spain