Abstract

Koi herpesvirus disease in the United Kingdom/Great Britain

OIE
OIE Disease Information (on-line)
19
35
2006
KOI HERPESVIRUS DISEASE IN THE UNITED KINGDOM/GREAT BRITAIN

( Disease never reported before in the United Kingdom/Great Britain ).

Immediate notification report
Information received on 30 August 2006 from Dr Debby Reynolds, Director General for Animal Health and Welfare, Department for Environment, Food and Rural Affairs (DEFRA), London :

Report date:
30 August 2006.

Reason for immediate notification:
emerging disease or pathogenic agent with findings that are of epidemiological significance to other countries.

Precise identification of agent:
koi herpesvirus (cyprinid herpesvirus 3).

Host species: Cyprinus carpio
(common carp).

Date of first confirmation of the event:
16 June 2006.

Date of start of the event:
2 June 2006.

Clinical disease:
yes.

Nature of diagnosis:
clinical and laboratory.

Details of occurrence:
First administra-tive division:
England; Lower administrative division: 17 various locations - see publication for details; Type of epidemiological unit: lakes; Date of start of the occurrence: 2 June - 23 August 2006; Species: pis; Number of animals in the occurrences: see publication for details

Description of affected population: wild fish in fresh water.

Diagnosis:
Laboratory where diagnosis was made:
Centre for Environment, Fisheries and Aquaculture Science (CEFAS), national reference laboratory, Weymouth; Species examined: pis; No. of animals examined: 15; Diagnostic tests used: - single round PCR(1)- gene sequencing; Date: 16 June 2006; Results: positive

Source of occurrences or origin of infection: unknown or inconclusive.

Control measures undertaken:

- tracing back;
- within-country movement controls.

Treatment of infected animals:
no.

Other details/comments:

- Rapid onset of mortalities of common carp in lakes managed as coarse fisheries across England. In all cases only common carp appear to be affected and dying.
- Other species of fish are unaffected.

Final report:
no.

Note by the OIE's Animal Health Information Department : the inclusion of Koi herpesvirus disease in the OIE-List of diseases was approved by the International Committee in May 2006. The inclusion of newly approved diseases in the OIE List, as part of the OIE's Animal Health Information System, will come into effect in January 2007.

(1) PCR: polymerase chain reaction


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