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)
| |
|
|
| 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 |
| |
|
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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