OIE: Low pathogenic avian influenza (poultry)(H7N1), United States of America
submited by kickingbird at Mar, 13, 2018 13:25 PM from OIE
Information received on 09/03/2018 from Dr John Clifford, Official Delegate, Chief Trade Advisor, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America
Summary
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Report type |
Immediate notification |
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Date of start of the event |
06/03/2018 |
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Date of confirmation of the event |
08/03/2018 |
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Report date |
09/03/2018 |
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Date submitted to OIE |
09/03/2018 |
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Reason for notification |
Recurrence of a listed disease |
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Date of previous occurrence |
2017 |
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Manifestation of disease |
Clinical disease |
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Causal agent |
Low pathogenic avian influenza virus |
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Serotype |
H7N1 |
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Nature of diagnosis |
Laboratory (basic), Laboratory (advanced) |
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This event pertains to |
a defined zone within the country |
New outbreaks
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Summary of outbreaks |
Total outbreaks: 1 | ||||||||||||
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Outbreak Location |
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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
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Source of the outbreak(s) or origin of infection |
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Epidemiological comments |
As part of routine, pre-slaughter testing and surveillance for H5/H7 avian influenza, H7N1 low pathogenic avian influenza (LPAI) was detected in a commercial broiler breeder flock based upon H7 PCR and antibody to H7 and N1. Partial HA sequencing determined the H7 to be a low pathogenic virus of North American wild bird lineage. Further characterization is pending virus recovery. The flock exhibited a slight increase in mortality and a decrease in egg production. Depopulation of the premises is underway. The USDA Animal Plant Health Inspection Service (APHIS) and the Texas Animal Health Commission are conducting a comprehensive epidemiological investigation of this incident and have implemented enhanced surveillance and testing within 10km of this finding. |
Control measures
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Measures applied |
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Measures to be applied |
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Diagnostic test results
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Laboratory name and type |
Texas A&M Veterinary Medical Diagnostic Laboratory ( Local laboratory ) | ||||||||||
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Tests and results |
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Laboratory name and type |
Texas A&M Veterinary Medical Diagnostic Laboratory ( Local laboratory ) | ||||||||||
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Tests and results |
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