1. Laboratory of Parasitology, Federal University of the Agreste of Pernambuco, Garanhuns 55292-270, PE, Brazil
2. Department of Veterinary Medicine, University of Bari, Valenzano, 70121 Bari, Italy
3. Department of Veterinary Pathobiology, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
4. Faculty of Veterinary Sciences, Bu-Ali Sina University, Hamedan 65174, Iran