1. Department of Parasitology, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka;
2. Department of Pathology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka;
3. Department of Dermatology, Army Hospital, Colombo, Sri Lanka;
4. Department of Parasitology, Faculty of Medicine, General Sir John Kotelawala Defence University, Rathmalana, Sri Lanka;
5. Department of Parasitology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka