Highly pathogenic avian influenza, Laos (2/26/2009) [WAHID Interface - OIE]

[Giuseppe]

Highly pathogenic avian influenza, Laos (2/26/2009) [WAHID Interface - OIE]

Highly pathogenic avian influenza, Laos

Information received on 26/02/2009 from Dr Khambounheuang Bounkhouang , Directeur G?n?ral, D?partement de l'Elevage et des P?ches , Minist?re de l'Agriculture et des For?ts , Vientiane, Laos

-- Summary
Report type Immediate notification
Start date 30/01/2009
Date of first confirmation of the event 09/02/2009
Report date 26/02/2009
Date submitted to OIE 26/02/2009
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 29/12/2008
Manifestation of disease Clinical disease
Causal agent highly pathogenic avian influenza virus Serotype H5N1
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
This event pertains to the whole country

-- New outbreaks

- Outbreak 1 - Ban Meuang Khoua, Khoua, PHONGSALY
Date of start of the outbreak 30/01/2009
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
- Birds - 3314 - 730 - 730 - 2584 - ...
Affected population: Free-range village poultry. Poultry started to get sick and died since the end of January 2009 with a high mortality rate.

-- Summary of outbreaks
Total outbreaks: 1
Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
- Birds - 22.03% - 22.03% - 100.00% - **
* 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
* Illegal movement of animals

-- Epidemiological comments
The first onset of the cases occurred during Lunar new year celebration and as a result the outbreak might be associated with the movement of poultry and poultry products for the celebration.

-- Control measures
Measures applied
* Stamping out
* Quarantine
* Movement control inside the country
* Disinfection of infected premises/establishment(s)
* Dipping / Spraying
* Vaccination prohibited
* No treatment of affected animals
Measures to be applied
* No other measures

-- Diagnostic test results
Laboratory name and type National Animal Health Centre (National laboratory)
Tests and results: Species - Test - Test date - Result
- Birds - rapid tests - 08/02/2009 - Positive
- Birds - real-time PCR - 09/02/2009 - Positive

-- Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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<cite cite="http://www.oie.int/wahis/public.php?page=single_report&pop=1&reportid=7830">WAHID Interface - OIE World Animal Health Information Database</cite>