OIE: Highly pathogenic avian influenza ,Hong Kong (SAR

OIE: Highly pathogenic avian influenza ,Hong Kong (SAR - PRC)
submited by kickingbird at Nov, 25, 2015 9:36 AM from OIE

Information received on 24/11/2015 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 (Final report)
Date of start of the event	17/11/2015
Date of confirmation of the event	23/11/2015
Report date	24/11/2015
Date submitted to OIE	24/11/2015
Date event resolved	17/11/2015
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	29/04/2015
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza 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 ( Wing Yiu House, Lai Yiu Estate, Kwai Chung )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Oriental Magpie-Robin:Muscicapidae (Copsychus saularis)		1	1	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Oriental Magpie-Robin:Muscicapidae (Copsychus saularis)	**	**	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. The date of end of the outbreak is the same as the date the bird was found (17 November 2015).

Control measures

Measures applied	Screening Disinfection / Disinfestation 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 & Conservation Department ( National laboratory )

Tests and results

Species	Test	Test date	Result
Oriental Magpie-Robin	immunohistochemical test	18/11/2015	Positive
Oriental Magpie-Robin	polymerase chain reaction (PCR)	18/11/2015	Positive
Oriental Magpie-Robin	virus isolation	23/11/2015	Positive

Laboratory name and type

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

Tests and results