1. Fish Disease Research Unit; Centre of Infectious Diseases; University of Veterinary Medicine Hannover; Hannover Germany
2. School of Life Sciences; Keele University; Keele UK
3. Faculty of Fisheries and Marine Science; Jenderal Soedirman University; Purwokerto Indonesia
4. Clinic for Poultry; University of Veterinary Medicine Hannover; Hannover Germany
5. Institute of Ichthyobiology and Aquaculture in Gołysz; Polish Academy of Sciences; Chybie Poland