OIE: Highly pathogenic avian influenza, Hong Kong (P.R. China)
submited by kickingbird at Feb, 14, 2009 20:39 PM from OIE
Information received on 13/02/2009 from Dr Thomas Sit, Assistant Director , Inspection & Quarantine, Agriculture, Fisheries and Conservation Department, Cheung Sha Wan , Hon Kong , Hong Kong (P.R. China)
Summary
| Report type | Immediate notification |
| Start date | 29/01/2009 |
| Date of first confirmation of the event | 31/01/2009 |
| Report date | 13/02/2009 |
| Date submitted to OIE | 13/02/2009 |
| Reason for notification | Reoccurrence of a listed disease |
| Date of previous occurrence | 01/2009 |
| Manifestation of disease | Sub-clinical infection |
| Causal agent | Highly pathogenic avian influenza virus |
| Serotype | H5N1 |
| Nature of diagnosis | Laboratory (advanced) |
| This event pertains to | the whole country |
New outbreaks
| Summary of outbreaks | Total outbreaks: 10 | ||||||||||||||||||
| Outbreak Location and Affected population |
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| Total animals affected |
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| Outbreak statistics |
* 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 |
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| Epidemiological comments | An intensive surveillance system is in place on all poultry farms, poultry markets, pet bird shops, park birds and wild birds in Hong Kong. Poultry carcasses from unknown sources were detected along the western coast of Hong Kong since 29 January 2009. Most of the carcasses were badly decomposed at the time of collection and sampling. Since February 2006, the HKSAR Government has banned backyard poultry farming and daily rural patrols throughout the territory have been put in place since then. This activity has been enhanced since the occurrence of the event. No poultry farm or backyard poultry farming activities were detected within the 3-km-radius affected zones. The monitoring on local poultry farms was also enhanced and no irregularity was detected. Investigations on the source of the poultry are ongoing. The three H5N1 positive wild birds were detected in our ongoing surveillance program on wild birds. No spread of disease was evident. The affected Mai Po nature reserve is closed for 21 days from 5 February 2009. |
Control measures
| Measures applied |
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| Measures to be applied |
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Diagnostic test results
| Laboratory name and type | Department of Microbiology, University de Hong Kong (National laboratory) | ||||||||||||||||||||||||||||
| Tests and results |
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| Laboratory name and type | Tai Lung Veterinary Laboratory Agriculture, Fisheries and Conservation Department (National laboratory) | ||||||||||||||||||||||||||||
| Tests and results |
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Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |
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