INFECTIOUS HAEMATOPOIETIC NECROSIS IN THE CZECH (REPUBLIC ~)
( Date of previous outbreak of infectious haematopoietic necrosis in the Czech Republic reported to the OIE: 2003).
Immediate notification report
Information received on 7 November 2006 from Dr Josef Vitásek, Head of the Division of Animal Health and Welfare, State Veterinary Administration, Prague:
Report date: 2 November 2006.
Reason for immediate notification: re-occurrence of an OIE listed disease in a zone of the country.
Identification of agent: infectious haematopoietic necrosis virus.
Date of first confirmation of the event: 27 October 2006.
Date of start of the event: 16 October 2006.
Clinical disease: yes.
Nature of diagnosis: clinical and laboratory.
Details of outbreak:
First administrative division (province): Jihocesky; Lower administrative division (district ): Cesky Krumlov; Type of epide-miolo-gical unit: farm; Name of the location: Mostky; Date of start of the outbreak: 16 Oct. 2006; Species: pis; Morbidity: 4%; Mortality: 1%;
Number of animals in the outbreak (in kg): susceptible: 25,000; cases: 900; deaths: 250; destroyed:
Description of affected population: freshwater rainbow trout( Oncorhynchus mykiss )in a semi-closed production system.
Laboratory where diagnostic tests were performed: Veterinary Research Institute, Brno; Species examined: pis; Diagnostic tests used: PCR(1);; Date: 27 Oct. 2006; Result: positive
Source of outbreak or origin of infection: unknown or inconclusive.
- tracing forward;
- tracing back;
- surveillance outside containment and/or buffer zone;
- decontamination of premises/disinfection;
- within-country movement controls.
B. To be undertaken:
- surveillance within containment and/or buffer zone;
- official destruction of clinically diseased aquatic animals;
- official destruction of aquatic animal products;
- official disposal of carcasses, by-products and waste.
Treatment of affected animals: no.
Vaccination prohibited: no.
Final report: no.
(1) PCR: polymerase chain reaction