OIE: Highly pathogenic avian influenza, South Africa
Information received on 01/02/2012 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa
Summary
| Report type |
Immediate notification |
| Start date |
19/12/2011 |
| Date of first confirmation of the event |
09/01/2012 |
| Report date |
01/02/2012 |
| Date submitted to OIE |
01/02/2012 |
| Reason for notification |
Reoccurrence of a listed disease |
| Date of previous occurrence |
21/10/2011 |
| Manifestation of disease |
Sub-clinical infection |
| Causal agent |
Highly pathogenic avian influenza virus |
| Serotype |
H7N1 |
| Nature of diagnosis |
Laboratory (advanced) |
| This event pertains to |
the whole country |
New outbreaks
| Summary of outbreaks |
Total outbreaks: 1 |
| Location(s) |
- WESTERN CAPE PROVINCE (HPAI_H7_001, Hessequa)
|
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
12278 |
1028 |
0 |
0 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
8.37% |
0.00% |
0.00% |
0.00% |
* Removed from the susceptible population through death, destruction and/or slaughter |
Epidemiology
| Source of the outbreak(s) or origin of infection |
|
| Epidemiological comments |
Commercial ostriches found to be seropositive for H7N1 during routine surveillance for HPAI. |
Control measures
| Measures applied |
- Quarantine
- Movement control inside the country
- Screening
- Vaccination prohibited
- No treatment of affected animals
|
| Measures to be applied |
|
Diagnostic test results
| Laboratory name and type |
Agricultural Research Council - Onderstepoort Veterinary Institute (ARC ? OVI) (National laboratory) |
| Tests and results |
| Species |
Test |
Test date |
Result |
| Birds |
haemagglutination inhibition test (HIT) |
31/01/2012 |
Positive | |
| Laboratory name and type |
Deltamune (Private Laboratory) |
| Tests and results |
| Species |
Test |
Test date |
Result |
| Birds |
haemagglutination inhibition test (HIT) |
09/01/2012 |
Positive | |
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |