OIE: Highly pathogenic avian influenza, Canada
submited by kickingbird at Sep, 28, 2007 20:44 PM from OIE
Highly pathogenic avian influenza, Canada
Information received on 28/09/2007 from Dr Brian Evans, Chief Veterinary Officer, 59 Camelot Drive, Room 146 W, Canadian Food Inspection Agency, OTTAWA, Canada
Summary
| Report type | Immediate notification |
| Start date | 23/09/2007 |
| Date of confirmation of event | 27/09/2007 |
| Report date | 28/09/2007 |
| Date submitted to OIE | 28/09/2007 |
| Reason for notification | Reoccurrence of a listed disease |
| Date of previous occurrence | 2004 |
| Manifestation of disease | Clinical disease |
| Causal agent | Avian influenza virus |
| Serotype | H7N3 |
| Nature of diagnosis | Clinical, Laboratory (basic), Laboratory (advanced) |
| Report pertains to | Entire country |
New outbreaks
| Summary of outbreaks | Total outbreaks: 1 | ||||||||||||
| Outbreak Location |
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| Total animals affected |
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| Outbreak statistics |
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Epidemiology
| Source of infection |
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| Epidemiological comments | The 100 rooster had been moved from the affected barn into the 52 week-old breeder flock two weeks previously. Additionally, 160 rooster were moved to the 29 week-old breeder flock on September 17. No signs of illness have been noticed in any of the breeder barns; however, the 29 week-old breeder flock has not performed well; they did not peck as expected and production is not as good as anticipated. On September 25, ancillary genetic results indicated the presence of an H7N3 virus in swab and tissue samples taken from the rooster barn. As of September 26, further test results indicate that birds in that barn were exposed to the virus several days prior to the findings as serology titers are demonstrated towards the virus. H7N3 active infection was further demonstrated with the presence of live virus in tissues from dead birds and swabs. Initial virus molecular pathotyping indicate that the virus has a high pathogenic molecular pattern. All samples tested to date from birds located in the other barns on the same premise do not indicate the presence of avian influenza viruses. Canadian Food Inspection Agency (CFIA) officials continue to proceed with the investigation according to the Notifiable Avian Influenza - Hazard Specific Plan (NAI-HSP). CFIA will apply restrictions on the movement of poultry and poultry products within three kilometres of the infected premises. As an additional safeguard, any poultry operations within ten kilometres of the infected premises will be closely and regularly monitored for signs of illness. |
Control measures
| Measures already applied |
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| Measures to be applied |
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Diagnostic test results
| Laboratory name and type | CFIA National Center Foreign Animal Disease, Winnipeg (National laboratory) | ||||||||||||||||||||
| Tests and results |
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| Laboratory name and type | CFIA NAtional Center Foreign Animal Disease, Winnipeg (National laboratory) | ||||||||||||||||||||
| Tests and results |
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- U.S.: HPAI detection in Idaho poultry flock 17 hours ago
- USDA: Detections of Highly Pathogenic Avian Influenza in Wild Birds 17 hours ago
- GISAID: H5N1 Bird Flu Circulating in Dairy Cows in the United States 5 days ago
- USCDC: A(H5N1) Bird Flu Response Update 5 days ago
- USCDC: Avian Influenza A(H5N1) U.S. Situation Update and CDC Activities 11 days ago
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