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  Title : #Avian #Influenza #H7N9 in #China: Preventing the Next #SARS. Subject : Avian Influenza, H7N9 subtype (Asian Lineage), poultry e...

6 Mar 2017

Highly pathogenic #avian #influenza #H7, #USA [a #poultry #outbreak, #Tennessee] (#OIE, Mar. 6 ‘17)

Title: Highly pathogenic #avian #influenza #H7, #USA [a #poultry #outbreak, #Tennessee].

Subject: Avian Influenza, H7Nx subtype, poultry epizootics in USA.

Source: OIE, full page: (LINK).

Code: [     ]


Highly pathogenic avian influenza H7, United States of America

Information received on 06/03/2017 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
    • Report type    Immediate notification
    • Date of start of the event    01/03/2017
    • Date of confirmation of the event    04/03/2017
    • Report date    06/03/2017
    • Date submitted to OIE    06/03/2017
    • Reason for notification    Reoccurrence of a listed disease
    • Date of previous occurrence    2016
    • Manifestation of disease    Clinical disease
    • Causal agent    Highly pathogenic avian influenza virus
    • Serotype    H7
    • Nature of diagnosis    Laboratory (advanced)
    • This event pertains to    a defined zone within the country
  • Summary of outbreaks   
    • Total outbreaks: 1
      • Total animals affected: Species    - Susceptible    - Cases    - Deaths    - Destroyed    - Slaughtered
        • Birds    - 73500    - **    - 700    - 72800    - 0
      • Outbreak statistics: Species    - Apparent morbidity rate    - Apparent mortality rate    - Apparent case fatality rate    - Proportion susceptible animals lost*
        • Birds    - **    - 0.95%    - **    - 100.00%
          • *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   
      • Unknown or inconclusive
  • Epidemiological comments   
    • As part of existing avian influenza response plans, the USDA Animal and Plant Health Inspection Service (APHIS), in conjunction with the Tennessee Department of Agriculture, are responding to the identification of a highly pathogenic avian influenza (HPAI) H7 of North American wild bird lineage detection in a chicken broiler breeder flock.
    • Further virus characterization including N-type is pending.
    • This is the first confirmed case of HPAI in commercial poultry in the United States this year.
    • A comprehensive epidemiological investigation in the surrounding area has begun along with enhanced surveillance and testing.
    • State officials have quarantined the affected premises and implemented movement controls.
    • Depopulation of birds on the premises has been completed.



Keywords: OIE; Updates; Avian Influenza; H7 ; Poultry; USA; Tennessee.