1. Department of Tropical and Parasitic Diseases, Institute of Maritime and Tropical Medicine, Faculty of Health Sciences, Medical University of Gdansk , Poland
2. University Center for Maritime and Tropical Medicine
3. University Center for Maritime and Tropical Medicine, Outpatient Clinic
4. Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Faculty of Health Sciences, Medical University of Gdansk
5. Division of Tropical Medicine and Epidemiology, Institute of Maritime and Tropical Medicine, Faculty of Health Sciences, Medical University of Gdansk , Poland