Update on the highly pathogenic avian influenza In Thailand

THAILAND - This is a report via OIE on the latest HPAI outbreak in Thailand.

31 January 2007

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Asia

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Information received on 31/01/2007 from Dr. Yukol Limlamthong, Director-General, Department of Livestock Development, Ministry of Agriculture and Cooperatives, BANGKOK, Thailand

Summary

Report type	Follow-up report No. 2
Start date	09/01/2007
Date of confirmation of event	15/01/2007
Report date	31/01/2007
Date submitted to OIE	31/01/2007
Reason for notification	Reoccurrence of listed disease
Date of previous occurrence	16/07/2006
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N1
Nature of diagnosis	Suspicion, Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
Report pertains to	Entire country
Related reports	Immediate notification (15/01/2007) Follow-up report No. 1 (25/01/2007) Follow-up report No. 2 (31/01/2007)
Outbreaks	There are no new outbreaks in this report

Epidemiology

Source of infection	Under investigation
Epidemiological comments	Thailand is conducting from 3 January to 3 February 2007 its first intensive surveillance this year. This outbreak is the first finding in 2007. It corresponds to the current avian influenza case definition upon active clinical surveillance campaign.

Control measures

Measures already applied	Movement control inside the country Screening Disinfection of infected premises/establishment(s) Dipping / Spraying Quarantine Zoning Vaccination prohibited No treatment of affected animals
Measures to be applied	None specified

Diagnostic test results

Laboratory name and type

Lower Northern Veterinary Research and Development (Pitsanuloke) Centre, Department of Livestock Development. (Local laboratory)

Tests and results

Species	Test	Test date	Result
Birds	haemagglutination (HA) test	15/01/2007	Positive
Birds	haemagglutination inhibition test (HIT)	15/01/2007	Positive
Birds	reverse transcription – polymerase chain reaction (RT-PCR)	11/01/2007	Positive
Birds	virus isolation	15/01/2007	Positive