Information received on 14/01/2021 from Mr Phannara Tan, Director General, General Directorate of Animal Health and Production, Ministry of Agriculture, Forestry and Fisheries, Phnom Penh, Cambodia
Summary
Report type
Immediate notification
Date of start of the event
05/01/2021
Date of confirmation of the event
11/01/2021
Report date
14/01/2021
Date submitted to OIE
14/01/2021
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
26/04/2019
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic avian influenza virus
Serotype
H5N1
Nature of diagnosis
Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to
the whole country
New outbreaks (1)

Outbreak 1 (010/21 MAFF)
Preak Tachraeng, Preak Norean, Aek Phnom, Battambang
Date of start of the outbreak
05/01/2021
Outbreak status
Resolved (13/01/2021)
Epidemiological unit
Village
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
1990
1827
1827
163
0
Affected population
Avian influenza affected poultry in backyard farms.
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
1990
1827
1827
163
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
91.81%
91.81%
100.00%
100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
Unknown or inconclusive
Epidemiological comments
On 9 January 2021, a provincial veterinarian received information about sick-dead poultry from a farmer in the village. He then went there to check and collect samples from the affected poultry and sent them to the National Animal Health and Production Research Institute, which confirmed positive to H5N1 on 11 january.

Control measures
Measures applied
Movement control inside the country
Surveillance within containment and/or protection zone
Stamping out
Zoning
Disinfection
Vaccination prohibited
No treatment of affected animals
Measures to be applied
Surveillance outside containment and/or protection zone
Diagnostic test results
Laboratory name and type
Species
Test
Test date
Result
National Animal Health and Production Research Institute (NAHPRI) (National laboratory)
Birds
real-time PCR
11/01/2021
Positive
Institute Pasteur, Cambodia (Regional Reference Laboratory)
Birds
real-time PCR
11/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.