Institution: | Department of Fish Pathology and Immunology, IFI, Żabieniec/Warsaw, 05–500 Piaseczno, Poland;Department of Epizoology with Clinic of Infectious Diseases, Faculty of Veterinary Medicine, Agricultural University, Olsztyn, Poland;Laboratoire Veterinaire Departemental, Conseil General du Jura, 39016 Lons le Saunier, France;Department of Veterinary Hygiene, Wroclaw, Poland |