1. Fish Disease Research Unit Institute for Parasitology University of Veterinary Medicine Hannover Germany
2. Department Fisheries Ecology North Rhine Westphalian State Agency for Nature Environment and Consumer Protection Albaum Germany
3. Hesse State Laboratory Control of Fish Diseases Giessen Germany
4. Fish Diseases Division for Diagnostics & Scientific Advice National Veterinary Institute Technical University of Denmark Lyngby Denmark
5. Department of Food Safety and Infection Biology Norwegian University of Life Sciences Oslo Norway