1. Medical Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
2. Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
3. Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
4. Medical Parasitology Sub-unit, Pathology Department, College of Medicine, Jouf University, Sakaka, Saudi Arabia