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


Highly pathogenic avian influenza H7N2, Australia


Information received on 16/10/2013 from Dr Mark Schipp, Chief Veterinary Officer, Ministry of Agriculture, Fisheries and Forestry, Ministry of Agriculture, Fisheries and Forestry, Canberra, Australia
  • Summary
    • Report type Immediate notification
    • Date of start of the event 08/10/2013
    • Date of pre-confirmation of the event 14/10/2013
    • Report date 16/10/2013
    • Date submitted to OIE 16/10/2013
    • 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

  • New outbreaks
    • Summary of outbreaks
      • Total outbreaks: 1
        • Outbreak Location - NEW SOUTH WALES ( Young )
        • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
          • Birds - 435000 - 18000 - 18000 - 0 - 0

        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Birds - 4.14% - 4.14% ? 100.00% - 4.14%
          • * 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
    • A Restricted Area of 1km diameter surrounded by a 10km diameter Control Area has been established around the property, which is under quarantine restriction.
    • Tracing of all movements (birds, people, vehicles and eggs) are under way.
    • An epidemiological investigation is under way to determine the source of the infection.

  • 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 - Elizabeth Macarthur Agricultural Institute ( Local laboratory )
      • Tests and results: Species - Test - Test date - Result
        • Birds - polymerase chain reaction (PCR) - 14/10/2013 - Positive

    • Laboratory name and type - Australian Animal Health Laboratory ( National laboratory )
      • Tests and results: Species - Test - Test date - Result
        • Birds - gene sequencing - 16/10/2013 - Positive
        • Birds - polymerase chain reaction (PCR) - 15/10/2013 - Positive

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

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