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Estados Unidos - 32 nuevos brotes de alta patogenicidad H5N2 de la gripe aviar en aves (OIE, 08 de mayo 2015)

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  • Estados Unidos - 32 nuevos brotes de alta patogenicidad H5N2 de la gripe aviar en aves (OIE, 08 de mayo 2015)

    Highly pathogenic avian influenza,
    United States of America
    Information received on 08/05/2015 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 Follow-up report No. 15
    Date of start of the event 10/12/2014
    Date of confirmation of the event 15/12/2014
    Report date 08/05/2015
    Date submitted to OIE 08/05/2015
    Reason for notification Reoccurrence of a listed disease
    Date of previous occurrence 2004
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H5N2
    Nature of diagnosis Laboratory (advanced)
    This event pertains to a defined zone within the country
    Related reports Immediate notification (16/12/2014)
    Follow-up report No. 1 (07/01/2015)
    Follow-up report No. 2 (13/01/2015)
    Follow-up report No. 3 (22/01/2015)
    Follow-up report No. 4 (03/02/2015)
    Follow-up report No. 5 (17/02/2015)
    Follow-up report No. 6 (24/02/2015)
    Follow-up report No. 7 (06/03/2015)
    Follow-up report No. 8 (12/03/2015)
    Follow-up report No. 9 (20/03/2015)
    Follow-up report No. 10 (31/03/2015)
    Follow-up report No. 11 (08/04/2015)
    Follow-up report No. 12 (15/04/2015)
    Follow-up report No. 13 (24/04/2015)
    Follow-up report No. 14 (01/05/2015)
    Follow-up report No. 15 (08/05/2015)
    New outbreaks (32)
    Outbreak 1 (111) Meeker County 7, Meeker, MINNESOTA
    Date of start of the outbreak 20/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 40200 40200 0
    Affected population A commercial turkey flock.
    Outbreak 2 (110) Chippewa County, Chippewa, MINNESOTA
    Date of start of the outbreak 22/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 65000 65000 0
    Affected population A commercial turkey flock.
    Outbreak 3 (119) Osceola County 2, Osceola, IOWA
    Date of start of the outbreak 22/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 260000
    Affected population A commercial chicken layer flock.
    Outbreak 4 (120) O''Brien County 2, O''Brien, IOWA
    Date of start of the outbreak 23/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 98040
    Affected population A commercial chicken layer flock.
    Outbreak 5 (116) Steele County, Steele, MINNESOTA
    Date of start of the outbreak 23/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 82900 82900 0
    Affected population A commercial turkey flock.
    Outbreak 6 (118) O''Brien County, O''Brien, IOWA
    Date of start of the outbreak 23/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 240000
    Affected population A commercial chicken layer flock.
    Outbreak 7 (112) Kandiyohi County 20, Kandiyohi, MINNESOTA
    Date of start of the outbreak 23/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 51000 51000 0
    Affected population A commercial turkey flock.
    Outbreak 8 (113) Kandiyohi County 21, Kandiyohi, MINNESOTA
    Date of start of the outbreak 23/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 8400 8400 0
    Affected population A commercial turkey flock.
    Outbreak 9 (122) Sioux County 2, Sioux, IOWA
    Date of start of the outbreak 24/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 3660000
    Affected population A commercial chicken layer flock.
    Outbreak 10 (114) Kandiyohi County 22, Kandiyohi, MINNESOTA
    Date of start of the outbreak 24/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 32200 32200 0
    Affected population A commercial turkey flock.
    Outbreak 11 (121) Swift County 3, Swift, MINNESOTA
    Date of start of the outbreak 24/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 18000 18000 0
    Affected population A commercial turkey flock.
    Outbreak 12 (108) McCraken County, McCraken, KENTUCKY
    Date of start of the outbreak 24/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Not applicable
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Ring-necked Duck:Aythya collaris(Anatidae)
    Affected population Wild bird surveillance.
    Outbreak 13 (117) Stearns County 11, Stearns, MINNESOTA
    Date of start of the outbreak 24/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 19200 19200 0
    Affected population A commercial turkey flock.
    Outbreak 14 (107) McCraken County, McCraken, KENTUCKY
    Date of start of the outbreak 24/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Not applicable
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Snow Goose:Anser caerulescens(Anatidae)
    Affected population Wild bird surveillance.
    Outbreak 15 (115) Kandiyohi County 23, Kandiyohi, MINNESOTA
    Date of start of the outbreak 25/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 4200 4200 0
    Affected population A commercial turkey flock.
    Outbreak 16 (130) Kossuth County, Kossuth, IOWA
    Date of start of the outbreak 25/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 18800
    Affected population A commercial chicken layer flock.
    Outbreak 17 (123) Kandiyohi County 24, Kandiyohi, MINNESOTA
    Date of start of the outbreak 26/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 13200 13200 0
    Affected population A commercial turkey flock.
    Outbreak 18 (125) Buena Vista County 2, Buena Vista, IOWA
    Date of start of the outbreak 26/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 41000
    Affected population A commercial turkey flock.
    Outbreak 19 (124) Stearns County 12, Stearns, MINNESOTA
    Date of start of the outbreak 26/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 202530
    Affected population A commercial chicken layer flock.
    Outbreak 20 (126) Kandiyohi County 25, Kandiyohi, MINNESOTA
    Date of start of the outbreak 27/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 11200 11200 0
    Affected population A commercial turkey flock.
    Outbreak 21 (133) Buena Vista County 5, Buena Vista, IOWA
    Date of start of the outbreak 27/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 5637400
    Affected population A commercial chicken layer flock.
    Outbreak 22 (127) Barron County 3, Barron, WISCONSIN
    Date of start of the outbreak 27/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 96500 96500 0
    Affected population A commercial turkey flock.
    Outbreak 23 (129) Buena Vista County 4, Buena Vista, IOWA
    Date of start of the outbreak 27/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 59300
    Affected population A commercial chicken layer flock.
    Outbreak 24 (128) Buena Vista County 3, Buena Vista, IOWA
    Date of start of the outbreak 27/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 40800
    Affected population A commercial turkey flock.
    Outbreak 25 (131) Otter Tail County 3, Otter Tail, MINNESOTA
    Date of start of the outbreak 28/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 36400 36400 0
    Affected population A commercial turkey flock.
    Outbreak 26 (138) Clay County, Clay, IOWA
    Date of start of the outbreak 28/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 93000
    Affected population A commercial chicken layer flock.
    Outbreak 27 (135) Stearns County 14, Stearns, MINNESOTA
    Date of start of the outbreak 28/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 20500 20500 0
    Affected population A commercial turkey flock.
    Outbreak 28 (132) Pocahontas County, Pocahontas, IOWA
    Date of start of the outbreak 28/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 16800
    Affected population A commercial turkey flock.
    Outbreak 29 (134) Stearns County 13, Stearns, MINNESOTA
    Date of start of the outbreak 28/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 14800 14800 0
    Affected population A commercial turkey flock.
    Outbreak 30 (136) Buena Vista County 6, Buena Vista, IOWA
    Date of start of the outbreak 29/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 29700
    Affected population A commercial turkey flock.
    Outbreak 31 (109) Yellow Medicine County, Yellow Medicine, MINNESOTA
    Date of start of the outbreak 29/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Not applicable
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Cooper's Hawk:Accipiter cooperii(Accipitridae)
    Affected population Wild bird surveillance.
    Outbreak 32 (137) Sioux County 3, Sioux, IOWA
    Date of start of the outbreak 29/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 165174
    Affected population A commercial chicken layer flock.
    Summary of outbreaks Total outbreaks: 32
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 11076244 ** 513700 0
    Ring-necked Duck:Aythya collaris(Anatidae) **
    Snow Goose:Anser caerulescens(Anatidae) **
    Cooper's Hawk:Accipiter cooperii(Accipitridae) **
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds ** ** ** **
    Ring-necked Duck:Aythya collaris(Anatidae) ** ** ** **
    Snow Goose:Anser caerulescens(Anatidae) ** ** ** **
    Cooper's Hawk:Accipiter cooperii(Accipitridae) ** ** ** **
    *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
    • Contact with wild species
    Epidemiological comments The USDA Animal and Plant Health Inspection Service (APHIS), in conjunction with State Departments of Agriculture and Wildlife, are continuing to conduct a comprehensive epidemiological investigation and enhanced surveillance (including wild bird surveillance of hunter harvested birds) in response to the HPAI H5N8 and H5N2 wild bird related events. Novel avian influenza virus of Eurasian origin (EA-H5N8 clade 2.3.4.4) spread rapidly along wild bird migratory pathways during 2014. Introduction of this EA-H5N8 virus into the Pacific Flyway sometime during 2014 has allowed mixing with North American (AM) lineage viruses and generated new combinations with genes from both EA and AM origin (or “reassortant” viruses) such as this EA/AM H5N2-reassortant detected in the US. In addition, overlap of the Pacific, Central, and Mississippi Americas flyways has resulted in movement of the virus to the central part of the country. The EA-H5 clade 2.3.4.4 viruses are highly pathogenic for poultry.
    Control measures
    Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Zoning
    • Disinfection of infected premises/establishment(s)
    • Vaccination prohibited
    • No treatment of affected animals
    Measures to be applied
    • No other measures
    Diagnostic test results
    Laboratory name and type Species Test Test date Result
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 27/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 28/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 29/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 30/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 01/05/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds virus sequencing 27/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds virus sequencing 28/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds virus sequencing 29/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds virus sequencing 30/04/2015 Positive
    National Veterinary Services Laboratories (NVSL) (National laboratory) Birds virus sequencing 01/05/2015 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    .../
    http://www.oie.int/wahis_2/public/wa...reportid=17688
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