OIE: Highly pathogenic avian influenza ,China (People´s Rep. of)

Information received on 02/01/2014 from Dr Zhang Zhongqiu, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People´s Rep. of)

Summary

Report type	Immediate notification
Date of start of the event	27/12/2013
Date of pre-confirmation of the event	02/01/2014
Report date	02/01/2014
Date submitted to OIE	03/01/2014
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	18/06/2013
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N1
Nature of diagnosis	Suspicion, Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

GUIZHOU ( Yijue Village, Libo, Qiannan )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	31567	9300	8500	23067	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	29.46%	26.93%	91.40%	100.00%

* Removed from the susceptible population through death, destruction and/or slaughter;

Epidemiology

Source of the outbreak(s) or origin of infection

Unknown or inconclusive

Control measures

Measures applied	Stamping out Quarantine Movement control inside the country Screening Zoning Disinfection of infected premises/establishment(s) Dipping / Spraying No vaccination No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

Harbin veterinary research institute, Chinese academy of agricultural sciences ( OIE’s Reference Laboratory )

Tests and results

Species	Test	Test date	Result
Birds	haemagglutination inhibition test (HIT)	02/01/2014	Positive
Birds	reverse transcription - polymerase chain reaction (RT-PCR)	02/01/2014	Positive

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted.