Information received on 25/12/2008 from Dr Kao Phal, Director, Department of Animal Health and Production, Ministry of Agriculture, Forestry and Fisheries, Phnom Penh 3, Cambodia

Summary

Report type Immediate notification
Start date 16/12/2008
Date of first confirmation of the event 16/12/2008
Report date 25/12/2008
Date submitted to OIE 25/12/2008
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 20/05/2007
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Suspicion, Laboratory (basic)
This event pertains to a defined zone within the country

New outbreaksSummary of outbreaks Total outbreaks: 1
Outbreak Location and Affected population KANDAL (Kraing Chek village, Deumrus commune, Kandal Steung) : The outbreak affected backyard poultry. Among these there are 40 ducks and 80 chickens that died. Total number of culling is 344 heads (75 ducks, 265 chickens, 2 geese and 2 turkey).

Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 464 120 120 344 0

Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 25.86% 25.86% 100.00% 100.00%

* Removed from the susceptible population through death, destruction and/or slaughter


EpidemiologySource of the outbreak(s) or origin of infection Unknown or inconclusive



Control measuresMeasures applied Stamping out
Quarantine
Movement control inside the country
Zoning
Disinfection of infected premises/establishment(s)
No vaccination
No treatment of affected animals

Measures to be applied No other measures



Diagnostic test resultsLaboratory name and type National Veterinary Research Institute (NaVRI) (National laboratory)
Tests and results Species Test Test date Result
Birds inoculation test 16/12/2008 Positive
Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 16/12/2008 Positive



Future ReportingThe event is continuing. Weekly follow-up reports will be submitted.