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

Information received on 26/06/2018 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	12/06/2018
Date of confirmation of the event	21/06/2018
Report date	26/06/2018
Date submitted to OIE	26/06/2018
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	10/10/2017
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N1
Nature of diagnosis	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

Qinghai ( Haixi Mongolian and Tibetan Autonomous Prefecture, Dachaidan District )

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	1615	1050	1050	565	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	65.02%	65.02%	100.00%	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	Movement control inside the country Screening Quarantine Official destruction of animal products Official disposal of carcasses, by-products and waste Stamping out Disinfection Vaccination permitted (if a vaccine exists) No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

Harbin National Avian Influenza Reference Laboratory ( OIE Reference Laboratory )

Tests and results

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Species	Test	Test date	Result
Birds	reverse transcription - polymerase chain reaction (RT-PCR)	21/06/2018	Positive
Birds	virus isolation