OIE: Low pathogenic avian influenza (poultry)(H5N2), Australia
submited by kickingbird at Aug, 14, 2020 8:17 AM from OIE
| Information received on 11/08/2020 from Dr Mark Schipp, Chief Veterinary Officer, Department of Agriculture, Water and the Environment, Australian Government, Canberra, Australia | |
|
Summary
| Report type |
Immediate notification |
| Date of start of the event |
07/08/2020 |
| Date of confirmation of the event |
10/08/2020 |
| Report date |
11/08/2020 |
| Date submitted to OIE |
11/08/2020 |
| Reason for notification |
Recurrence of a listed disease |
| Date of previous occurrence |
27/06/2013 |
| Manifestation of disease |
Clinical disease |
| Causal agent |
Low pathogenic avian influenza virus |
| Serotype |
H5N2 |
| Nature of diagnosis |
Clinical, Laboratory (basic), Laboratory (advanced) |
| This event pertains to |
a defined zone within the country | |
|
|
| Outbreak 1 |
Bairnsdale, Victoria |
| Date of start of the outbreak |
07/08/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
5440 |
|
34 |
0 |
0 | |
| Affected population |
3000 18 week old turkeys, including 7-800 moved from the Lethbridge property. 2440 3-4 week old turkey poults. | |
| Outbreak 2 |
Lethbridge, Victoria |
| Date of start of the outbreak |
08/08/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
7200 |
|
|
0 |
0 | |
| Affected population |
4500 mixed age turkeys and 2700 spent layer hen/rooster on a property within the current restricted area established for HPAI | |
| Summary of outbreaks |
Total outbreaks: 2 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
12640 |
** |
34 |
0 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
** |
** |
** |
** | |
| *Removed from the susceptible population through death, destruction and/or slaughter |
| **Not calculated because of missing information | |
|
Epidemiology
| Source of the outbreak(s) or origin of infection |
- Unknown or inconclusive
- Contact with wild species
|
| Epidemiological comments |
A mixed turkey/ spent layer hen farm within the existing restricted area for HPAI was sampled following notification of clinical signs. A second commercial turkey farm near Bairnsdale was investigated due to recent movement of 7-800 turkeys from the first property. | |
|
|
Control measures
| Measures applied |
- Movement control inside the country
- Surveillance outside containment and/or protection zone
- Surveillance within containment and/or protection zone
- Quarantine
- Vaccination prohibited
- No treatment of affected animals
|
| Measures to be applied |
- Official disposal of carcasses, by-products and waste
- Stamping out
- Disinfection
| |
|
Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Australian Centre for Disease Preparedness (OIE Reference Laboratory) |
Birds |
gene sequencing |
09/08/2020 |
Positive |
| Australian Centre for Disease Preparedness (OIE Reference Laboratory) |
Birds |
real-time PCR |
09/08/2020 |
Positive | |
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |
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