1. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wroclaw, Poland
2. Department of Surgery, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Plac Grunwaldzki 51, 50-366 Wroclaw, Poland
3. Department of Parasitology, Faculty of Biological Sciences, University of Wrocław, Przybyszewskiego 63, Wrocław, 51-148, Poland
4. Department of Invertebrate Systematics and Ecology, Institute of Environmental Biology, Wroclaw University of Environmental and Life Sciences, Kożuchowska 5B, 51-631 Wroclaw, Poland