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2024-3-29 10:11:01


OIE: Highly pathogenic avian influenza(H7N7), Australia
submited by kickingbird at Aug, 8, 2020 9:17 AM from OIE

Information received on 07/08/2020 from Dr Mark Schipp, Chief Veterinary Officer, Department of Agriculture, Water and the Environment, Australian Government, Canberra, Australia
Summary
Report type Follow-up report No. 1
Date of start of the event 24/07/2020
Date of confirmation of the event 31/07/2020
Report date 07/08/2020
Date submitted to OIE 07/08/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 21/02/2014
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H7N7
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
This event pertains to a defined zone within the country
Related reports Immediate notification (31/07/2020)
Follow-up report No. 1 (07/08/2020)
New outbreaks (1)
Outbreak 1 Lethbridge, Victoria
Date of start of the outbreak 05/08/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 355000 211512 190 0 0
Affected population Mixed free-range, caged and barn laid layer poultry farm. All free range birds housed from 31 July 2020.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 355000 211512 190 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 59.58% 0.05% 0.09% 0.05%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
  • Contact with wild species
Epidemiological comments Depopulation of IP1 is complete. Disposal and decontamination are underway.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Traceability
  • Quarantine
  • Stamping out
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Disinfection
Diagnostic test results
Laboratory name and type Species Test Test date Result
AgriBio (Local laboratory) Birds real-time PCR 05/08/2020 Positive
Australian Centre for Disease Preparedness (OIE Reference Laboratory) Birds real-time PCR 05/08/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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