INFECTIOUS PANCREATIC NECROSIS IN SLOVAKIA
( Disease never reported before in Slovakia ).
Immediate notification report
Information received on 17 May 2005 from Prof. Jozef Bíres, Director General, State Veterinary and Food Administration (SVFA), Bratislava:
Report date: 2 May 2005.
Reason for immediate notification: first occurrence or re-occurrence in a country or zone /compartment of the country, if the country or zone/compartment of the country was previously considered to be free of that particular disease.
Within the framework of a monitoring programme for viral haemorrhagic septicaemia and infectious haematopoietic necrosis, a suspicion of infectious pancreatic necrosis (IPN) arose as a result of laboratory tests carried out at the State Veterinary and Food Institute Dolný Kubín (national reference laboratory for fish diseases) on fish sampled on 8 December 2004 from a farm located in Galanta county, in the western part of the country. In the farm, at the time of suspicion, the main fish species farmed for human consumption were Oncorhynchus mykiss , Esox lucius , Carpio cyprinus , Acipenser spp. and Huso huso .
Based on the suspicion, the Galanta District Veterinary and Food Administration (DVFA) took preventive measures to avoid any disease spread.
Since repeated tests supported the suspicion, the national reference laboratory requested the European Union (EU) reference laboratory for fish diseases for confirmation of the suspected first outbreak of IPN on the territory of Slovakia.
Using a virus neutralisation test, under protocol number 205058, the EU reference laboratory confirmed the presence of the virus in three out of five samples submitted and informed the national reference laboratory on 4 April 2005.
The epidemiological investigations carried out failed to determine the source of the virus. According to available documentation and trace-in/trace-out investigations, and considering the potential introduction period, the DVFA and SVFA considered piscivorous birds as a possible source of introduction of the virus.
Based on the confirmed presence of the IPN virus in samples, the DVFA withdrew the previous preventive measures and introduced the following new measures:
- any intended movement of fish from the farm concerned should be notified one working day in advance;
- every consignment of live fish originating from the IPN-infected farm should be clearly identified as such.