Highly pathogenic avian influenza H7N2, Australia (OIE, October 16 2013): 1 New Poultry Outbreak in NSW

[Giuseppe]

[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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