1. National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
2. Regional Animal Disease Diagnostic Laboratory, Department of Agriculture Regional Field Office IV-A, Marawoy, Lipa City 4217, Batangas, Philippines
3. College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
4. Institute of Molecular Parasitology and Protozoan Diseases at Main Campus and College of Veterinary Medicine at Barili Campus, Cebu Technological University, Cebu City 6000, Cebu, Philippines
5. Biology Department, College of Science, De La Salle University, Taft Avenue, Manila 1004, Philippines