Highly pathogenic avian influenza In Hungary

This is a followup report (No 1) from OIE on the outbreak of Avian Influenza in Hungary.

12 February 2007

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Europe

Information received on 12/02/2007 from Mr Tibor Bálint, Chief Veterinary Officer, Animal Health and Food Control Department, Ministry of Agriculture and Rural Development , Budapest, Hungary

Summary

Report type	Follow-up report No. 1
Start date	19/01/2007
Date of confirmation of event	24/01/2007
Report date	12/02/2007
Date submitted to OIE	13/02/2007
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	06/2006
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N1
Nature of diagnosis	Suspicion, Clinical, Laboratory (basic), Laboratory (advanced)
Report pertains to	Entire country
Related reports	Immediate notification (24/01/2007) Follow-up report No. 1 (12/02/2007)

New Outbreaks

Outbreak 1

Derekegyház-Ördöngös, Szentes, CSONGRAD

Date of start of outbreak

23/01/2007

Outbreak status

Continuing (or date resolved not submitted)

Epidemiological unit

Farm

Affected animals

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	9386	2596	2596	6790	0

Affected population

a geese flock

Summary of outbreaks

Total outbreaks: 1

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible removed*
Birds	27.66%	27.66%	100.00%	100.00%

* Removed from the susceptible population either through death, destruction or slaughter

Epidemiology

Source of infection

Unknown or inconclusive

Epidemiological comments

This farm is situated within the surveillance zone, at about 9 km from the earlier confirmed outbreak in Csongrád county (in Szentes-Lapistó).

In the morning of 26 January 2007, a bacterial infection (Mycoplasmosis) was suspected on the basis of post-mortem examinations. For safety reasons, the official movement control of the flock was ordered and samples were sent to the Veterinary Diagnostic Directorate of the Central Agricultural Office.

On the late afternoon of 26 January 2007, the clinical signs and post-mortem examinations carried out on spot did not exclude the suspicion of HPAI virus to be present in this geese flock. The same day, the affected geese showed neurological signs explicitly. Therefore, the killing of whole flock was ordered.

On 27 January 2007, the whole flock of the affected farm was killed as well as the flocks of four backyard farms within the 1-km-radius zone around the affected farm.

Control measures

Measures already applied	Screening Disinfection of infected premises/establishment(s) Quarantine Stamping out Zoning Vaccination prohibited No treatment of affected animals
Measures to be applied	None specified

Diagnostic test results

Laboratory name and type

Veterinary Diagnostic Directorate of the Central Agricultural Office, Budapest (former Central Veterinary Institute) (National laboratory)

Tests and results

Species	Test	Test date	Result
Birds	haemagglutination inhibition test (HIT)	30/01/2007	Positive
Birds	polymerase chain reaction (PCR)	30/01/2007	Positive
Birds	virus isolation	30/01/2007	Positive