OIE: Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds), Hong Kong (SAR-PRC)

OIE: Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds), Hong Kong (SAR-PRC)
submited by kickingbird at Apr, 14, 2017 7:44 AM from OIE

Information received on 12/04/2017 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	07/04/2017
Date of confirmation of the event	12/04/2017
Report date	12/04/2017
Date submitted to OIE	12/04/2017
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	30/11/2016
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic influenza A virus
Serotype	H5N6
Nature of diagnosis	Laboratory (advanced)
This event pertains to	the whole country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

HONG KONG ( Argyle Street Playground, Kowloon City )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Red-whiskered Bulbul:Pycnonotidae (Pycnonotus jocosus)		1	1

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Red-whiskered Bulbul:Pycnonotidae (Pycnonotus jocosus)	**	**	100.00%	**

* Removed from the susceptible population through death, destruction and/or slaughter;
** Not calculated because of missing information;

Epidemiology

Source of the outbreak(s) or origin of infection

Unknown or inconclusive

Epidemiological comments

An intensive surveillance system is in place for all poultry farms, poultry markets, and pet bird shops in Hong Kong. The H5N6 infected wild bird was detected in our ongoing surveillance program on wild birds. No spread of disease was evident. There are no poultry farms located within three kilometres of where the bird was found. The Hong Kong Wetland Park and Mai Po Nature Reserve are not located within three kilometres of where the bird was found.The date of end of the outbreak is the same as the date the bird was found (7 April 2017).

Control measures

Measures applied	Screening Disinfection / Disinfestation 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

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

Tests and results

Species	Test	Test date	Result
Red-whiskered Bulbul	immunohistochemical test	10/04/2017	Positive
Red-whiskered Bulbul	real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)	10/04/2017	Positive
Red-whiskered Bulbul	virus isolation	12/04/2017	Positive

Laboratory name and type