OIE: Low pathogenic avian influenza (poultry), Australia
submited by kickingbird at Jan, 28, 2012 10:50 AM from OIE
Information received on 27/01/2012 from Dr Mark Andrew Schipp, Chief Veterinary Officer, Ministry of Agriculture, Fisheries and Forestry, Ministry of Agriculture, Fisheries and Forestry, Canberra, Australia
Summary
| Report type | Immediate notification |
| Start date | 25/01/2012 |
| Date of first confirmation of the event | 25/01/2012 |
| Report date | 27/01/2012 |
| Date submitted to OIE | 27/01/2012 |
| Reason for notification | First occurrence of a listed disease |
| Manifestation of disease | Sub-clinical infection |
| Causal agent | Low pathogenic avian influenza virus |
| Serotype | H5 |
| Nature of diagnosis | Laboratory (advanced) |
| This event pertains to | the whole country |
New outbreaks
| Outbreak 1 | Melbourne area, VICTORIA | ||||||||||||
| Date of start of the outbreak | 25/01/2012 | ||||||||||||
| Outbreak status | Continuing (or date resolved not provided) | ||||||||||||
| Epidemiological unit | Farm | ||||||||||||
| Affected animals |
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| Affected Population | The epidemiological unit is a duck grower farm and associated breeding facility in the Melbourne area. Low pathogenic notifiable avian influenza subtype H5 was detected during routine surveillance from a healthy flock. | ||||||||||||
| Summary of outbreaks | Total outbreaks: 1 | ||||||||||||
| 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 | H5 LPAI confirmed by Victorian Department of Primary Industries (DPI) and sequencing at the Australian Animal Health Laboratory. N1 has been ruled out on N1-specific PCR. Virus isolation and characterisation is being conducted. The outbreak was confirmed on the index duck meat grower farm. Due to close commercial links with a second duck breeding farm, the second farm has also been designated as infected premises being part of the same epidemiological unit. Notes by the OIE Animal Health Information Department: - Since this is the first time that LPAI is identified in poultry in the history of the country, the reason for notification as first occurrence applies to the country but the event is in fact circumscribed to a small area as shown on the map. - H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2011). |
Control measures
| Measures applied |
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| Measures to be applied |
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Diagnostic test results
| Laboratory name and type | DPI Diagnostic Veterinary Laboratory, Attwood (Local laboratory) | ||||||||
| Tests and results |
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| Laboratory name and type | Australian Animal Health Laboratory (OIE’s Reference 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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