[Source: OIE, full page: (LINK). Edited.]


Highly pathogenic avian influenza H7N2, Australia


Information received on 25/10/2013 from Dr Mark Schipp, Chief Veterinary Officer, Ministry of Agriculture, Ministry of Agriculture, Canberra, Australia
  • Summary
    • Report type Follow-up report No. 2
    • Date of start of the event 08/10/2013
    • Date of pre-confirmation of the event 14/10/2013
    • Report date 25/10/2013
    • Date submitted to OIE 25/10/2013
    • Reason for notification Reoccurrence of a listed disease
    • Date of previous occurrence 20/03/2013
    • Manifestation of disease Clinical disease
    • Causal agent Highly pathogenic avian influenza virus
    • Serotype H7N2
    • Nature of diagnosis Laboratory (advanced)
    • This event pertains to a defined zone within the country
    • Related reports

  • New outbreaks (1)
    • Outbreak 1 - Young, NEW SOUTH WALES
      • Date of start of the outbreak 22/10/2013
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds - 55000 ? 620 ? 620 ? 0 ? 0
        • Affected population: Cage layer hens aged 45-84 weeks

  • Summary of outbreaks
    • Total outbreaks: 1
      • Total animals affected: Species ? Susceptible ? Cases ? Deaths - Destroyed ? Slaughtered
        • Birds ? 55000 ? 620 ? 620 ? 0 - 0

      • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
        • Birds - 1.13% - 1.13% - 100.00% - 1.13%
        • *Removed from the susceptible population through death, destruction and/or slaughter

  • Epidemiology
    • Source of the outbreak(s) or origin of infection
      • Unknown or inconclusive

  • Epidemiological comments
    • All birds on the first infected property have been destroyed.
    • The second infected property was under active surveillance as part of the original investigation.
    • The N type has not yet been identified in this second outbreak.

  • Control measures
    • Measures applied
      • Quarantine
      • Movement control inside the country
      • Screening
      • Zoning
      • Vaccination prohibited
      • No treatment of affected animals

    • Measures to be applied
      • Stamping out
      • Disinfection of infected premises/establishment(s)

  • Diagnostic test results
    • Laboratory name and type: Species ? Test - Test date ? Result
      • Australian Animal Health Laboratory (National laboratory) - Birds - polymerase chain reaction (PCR) - 25/10/2013 ? Positive

  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.

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