OIE: Low pathogenic avian influenza (poultry), Portugal
submited by kickingbird at Jan, 9, 2008 13:43 PM from OIE
Information received on 04/01/2008 from Mr Carlos Agrela Pinheiro, Chief Veterinary Officer, Director General, Direc?ao-Geral de Veterinária, Ministério da Agricultura, LISBONNE, Portugal
Summary
| Report type |
Immediate notification |
| Start date |
21/12/2007 |
| Date of confirmation of event |
21/12/2007 |
| Report date |
04/01/2008 |
| Date submitted to OIE |
04/01/2008 |
| Reason for notification |
Reoccurrence of a listed disease |
| Date of previous occurrence |
23/10/2007 |
| Manifestation of disease |
Sub-clinical infection |
| Causal agent |
Low pathogenic avian influenza virus (serotype H5) |
| Serotype |
Pending |
| Nature of diagnosis |
Laboratory (advanced) |
| Report pertains to |
Entire country |
New outbreaks
| Outbreak 1 (002/2007) |
Atalaia - Lourinh?, OESTE |
| Date of start of outbreak |
21/12/2007 |
| Outbreak status |
Resolved (21/12/2007) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
988 |
|
0 |
988 |
0 | |
| Affected population |
a farm with red-legged partridges (Alectoris rufa) for hunting restocking |
| Outbreak 2 (003/2007) |
Santo Estev?o das Galés - Mafra, OESTE |
| Date of start of outbreak |
21/12/2007 |
| Outbreak status |
Resolved (22/12/2007) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
9527 |
|
0 |
9527 |
0 | |
| Affected population |
a farm with red-legged partridges (Alectoris rufa) for hunting restocking (9522 animals) and an annex including five pheasants |
| Outbreak 3 (004/2007) |
Santo Estev?o das Galés - Mafra, OESTE |
| Date of start of outbreak |
31/12/2007 |
| Outbreak status |
Continuing (or date resolved not submitted) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
16800 |
|
0 |
16800 |
0 | |
| Affected population |
a broiler farm 350 m far from the outbreak No. 003/2007 |
| Summary of outbreaks |
Total outbreaks: 3 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
27315 |
|
0 |
27315 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible removed* |
| Birds |
0.00% |
0.00% |
- |
100.00% | * Removed from the susceptible population either through death, destruction or slaughter |
Epidemiology
| Source of infection |
|
| Epidemiological comments |
Tests were carried out in the partridge farms (outbreaks No. 002/2007 and 003/2007) within the framework of the nacional surveillance plan for avian influenza; tests in the chicken farm were part of the screening measures implemented following the outbreak No. 003/2007. There is no other poultry farm within a one-km radius from the outbreaks.
Note by the OIE Animal Health Information Department: H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 2.7.12. on avian influenza of the Terrestrial Animal Health Code. |
Control measures
| Measures already applied |
- Stamping out
- Quarantine
- Movement control inside the country
- Screening
- Zoning
- Disinfection of infected premises/establishment(s)
- Vaccination prohibited
- No treatment of affected animals
|
| Measures to be applied |
|
Diagnostic test results
| Laboratory name and type |
Laboratório Nacional de Investiga??o Veterinária (National laboratory) |
| Tests and results |
| Species |
Test |
Test date |
Result |
| Birds |
RT-PCR (amplification génomique en cha?ne avec polymérase - transcriptase inverse) |
21/12/2007 |
Positive | |
Map of outbreak locations
| Location of current outbreaks |
|
