1. Faculty of Science, Masaryk University, CZ-62500 Brno, Czech Republic
2. Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, CZ-37005 Ceske Budejovice, Czech Republic
3. Laboratory of Emerging Viral Infections, Veterinary Research Institute, CZ-62100 Brno, Czech Republic
4. Research Center for Thermotolerant Microbial Resources, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-0841, Japan