OIE: Highly pathogenic avian influenza ,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.