OIE: Low pathogenic avian influenza (poultry), United States of America
submited by kickingbird at Sep, 6, 2008 12:5 PM from OIE
Information received on 03/09/2008 from Dr John Clifford, Deputy Administrator, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America
Summary
Report type | Immediate notification |
Start date | 25/08/2008 |
Date of first confirmation of the event | 02/09/2008 |
Report date | 03/09/2008 |
Date submitted to OIE | 04/09/2008 |
Reason for notification | Reoccurrence of a listed disease |
Date of previous occurrence | 07/2008 |
Causal agent | Low pathogenic avian influenza virus |
Serotype | H5N8 |
Nature of diagnosis | Laboratory (advanced) |
This event pertains to | a defined zone within the country |
New outbreaks
Summary of outbreaks | Total outbreaks: 1 | ||||||||||||
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 | ? The game bird owner recently submitted three dead birds to the Pennsylvania Animal Diagnostic Laboratory and Pennsylvania State University (PSU) for diagnostic work-up. ? The PSU laboratory identified Pasturella and Mycoplasma from culture but also ran the PCR test for avian influenza (AI), which is a routine testing procedure. The PCR test gave positive results for AI. Samples were also forwarded to the National Veterinary Services Laboratories (NVSL) for confirmation. ? 29 August 2008: the NVSL confirmed an H5 positive, N1 negative PCR finding. ? The premises was quarantined by the Idaho Department of Agriculture on 29 August 2008. ? Enhanced surveillance and epidemiological investigation of the game bird premises began on 29 August 2008 by the Idaho Department of Agriculture officials, in conjunction with USDA APHIS Veterinary Services personnel. ? 2 September 2008: the NVSL confirmed and reported an H5N8 positive virus from samples taken from pheasants on the game bird premises. ? 3 September 2008: sequencing results from NVSL were compatible with low pathogenic avian influenza. The sequence is approximately 98.5% similar to A/mallard/BC/373/2005 H5N2 and 98.3% similar to A/tundra swan/AK/44049-168/2006 H5N2. Note by the OIE Animal Health Information Department: H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 2.7.12. on avian influenza of the Terrestrial Animal Health Code. |
Control measures
Measures applied |
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Measures to be applied |
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Diagnostic test results
Laboratory name and type | Pennsylvania Animal Diagnostic Lab (Local laboratory) | ||||||||||||||||||||
Tests and results |
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Laboratory name and type | National Veterinary Services Laboratories (NVSL) (National laboratory) | ||||||||||||||||||||
Tests and results |
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Laboratory name and type | NVSL (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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