1. Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
2. Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
3. Faculty of Biology, M. V. Lomonosov Moscow State University, Moscow, Russia
4. Martsinovsky Institute of Medical Parasitology, Tropical and Vector Borne Diseases, Sechenov University, Moscow, Russia