Highly pathogenic avian influenza H7N7, Australia (OIE, November 22 2012): No New Poultry Outbreaks

[Giuseppe]

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


Highly pathogenic avian influenza, Australia


Information received on 22/11/2012 from Dr Mark Schipp, Chief Veterinary Officer, Ministry of Agriculture, Fisheries and Forestry, Ministry of Agriculture, Fisheries and Forestry, Canberra, Australia

• Summary
  • Report type Follow-up report No. 1
  • Date of start of the event 09/11/2012
  • Date of pre-confirmation of the event 14/11/2012
  • Report date 22/11/2012
  • Date submitted to OIE 22/11/2012
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 11/1997
  • Manifestation of disease Clinical disease
  • Causal agent Highly pathogenic avian influenza virus
  • Serotype H7N7
  • Nature of diagnosis Laboratory (basic), Laboratory (advanced)
  • This event pertains to a defined zone within the country
  • Related reports
    • Immediate notification (15/11/2012)
    • Follow-up report No. 1 (22/11/2012)
• Outbreaks
  • There are no new outbreaks in this report
• Epidemiology
  • Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive
• Epidemiological comments
  • The affected birds are free range layer hens.
  • The property has several dams that attract wild ducks.
  • A Restricted Area of 1 km diameter surrounded by a 9 km diameter Control Area has been established around the property, which is under quarantine restriction.
  • Tracing is underway.
  • Depopulation is complete.
  • Surveillance is continuing and no further signs of disease have been reported.
• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Zoning
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • 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) - 20/11/2012 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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