1. Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
2. Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
3. Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budejovice (Budweis), Czech Republic
4. Faculty of Sciences, University of South Bohemia, České Budejovice (Budweis), Czech Republic
5. Martsinovsky Institute of Medical Parasitology, Tropical and Vector Borne Diseases, Sechenov University, Moscow, Russia