OIE: Highly pathogenic avian influenza, Cambodia

OIE: Highly pathogenic avian influenza, Cambodia
submited by kickingbird at Jul, 29, 2011 8:16 AM from OIE

Information received on 28/07/2011 from Dr Sen Sovann, Deputy Secretary General , Ministry of Agriculture, Forestry and Fisheries , Ministry of Agriculture, Forestry and Fisheries , Phnom Penh, Cambodia

Summary

Report type	Immediate notification (Final report)
Start date	13/07/2011
Date of first confirmation of the event	18/07/2011
Report date	26/07/2011
Date submitted to OIE	28/07/2011
Date event resolved	25/07/2011
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	01/10/2010
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N1
Nature of diagnosis	Suspicion, Clinical, Laboratory (basic), Necropsy
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Location(s)

TAKEO (Phnom Tamao zoo, Trapang Sap, Bati)

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Wild species		29	19	10	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Wild species	**	**	65.52%	**

* 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

Epidemiological comments

On 13 July 2011, in the morning, a worker found 11 dead wild birds around different ponds and 3 birds dead in the quarantine. The carcasses were buried and TH4 was sprayed everywhere. The veterinarian indicated that Newcastle or fowl cholera were originally suspected.
On 14 July 2011, 3 dead birds and 10 sick birds were found; symptoms were immobility, wings down, severe depression. The sick birds were culled. Two carcasses were sent to the National Veterinary Research Institute (NaVRI).
On 15 July 2011, 2 dead birds were found and buried.
On 16 July 16 2011, no new mortality was observed.
On 18 July 2011 the result of test by NaVRI confirmed positive H5N1. The investigation team from NaVRI with the cooperation of the Phnom Tamao zoo veterinary conducted an investigation in the zoo and carried out surveillance in neighboring village near the zoo from 19-25 July 2011.

Control measures

Measures applied	Quarantine Movement control inside the country Zoning 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 Veterinary Research Institute (NaVRI) (National laboratory)

Tests and results

Species	Test	Test date	Result
Wild species	inoculation test	18/07/2011	Positive
Wild species	real-time PCR	18/07/2011	Positive

Future Reporting

The event is resolved. No more reports will be submitted.

See Also:

http://www.oie.int

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