OIE: Low pathogenic avian influenza (poultry) ,Hong Kong (SAR

OIE: Low pathogenic avian influenza (poultry) ,Hong Kong (SAR - PRC)
submited by kickingbird at Jan, 3, 2015 8:31 AM from OIE

Information received on 02/01/2015 from Dr Thomas Sit, Chief Veterinary Officer / Assistant Director (Inspection & Quarantine), Agriculture, Fisheries and Conservation Department, Hong Kong Special Administrative Region Government, Hong Kong , Hong Kong (SAR - PRC)

Summary

Report type	Immediate notification
Date of start of the event	30/12/2014
Date of pre-confirmation of the event	30/12/2014
Report date	02/01/2015
Date submitted to OIE	02/01/2015
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	28/04/2014
Manifestation of disease	Sub-clinical infection
Causal agent	Low pathogenic avian influenza virus
Serotype	H7N9
Nature of diagnosis	Laboratory (advanced)
This event pertains to	the whole country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

HONG KONG ( 4 Hing Wah Street, Cheung Sha Wan )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	18962	1	0	18962	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	0.01%	0.00%	0.00%	100.00%

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

Epidemiology

Source of the outbreak(s) or origin of infection

Legal movement of animals

Epidemiological comments

An intensive surveillance system is in place for all imported poultry, wild bird, local poultry farms, poultry markets and pet bird shops.

An imported consignment containing 1200 chickens was tested positive for low pathogenic avian influenza virus (H7N9) during the routine surveillance programme.

A total of 18,962 poultry, including 11,800 chickens, 3,140 silky chickens, 1,025 chukars and 2,997 pigeons were culled on 31 December 2014. Importation of live poultry is banned for 21 days.

Control measures

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

Diagnostic test results

Laboratory name and type

Tai Lung Veterinary Laboratory, Agriculture, Fisheries and Conservation Department ( National laboratory )

Tests and results

Species	Test	Test date	Result
Birds	haemagglutination inhibition test (HIT)	30/12/2014	Positive
Birds	polymerase chain reaction (PCR)	30/12/2014	Positive
Birds	virus isolation		Pending

Laboratory name and type

Centre of Influenza Research, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong ( Regional Reference Laboratory )

Tests and results

Species	Test	Test date	Result
Birds	gene sequencing		Pending

Future Reporting

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

See Also:

http://www.oie.int

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