Highly pathogenic avian influenza,
Information received on 09/02/2018 from Dr Sen Sovann, Director General , Ministry of Agriculture, Forestry and Fisheries , General Directorate of Animal Health and Production (GDAHP), Phnom Penh, Cambodia
Report type Follow-up report No. 4
Date of start of the event 22/11/2017
Date of confirmation of the event 06/12/2017
Report date 09/02/2018
Date submitted to OIE 09/02/2018
Date event resolved 24/03/2018
Reason for notification Recurrence of a listed disease
Date of previous occurrence 31/01/2017
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
Related reports Immediate notification (09/12/2017)
Follow-up report No. 1 (18/12/2017)
Follow-up report No. 2 (30/12/2017)
Follow-up report No. 3 (16/01/2018)
Follow-up report No. 4 (09/02/2018)
Follow-up report No. 5 (13/02/2018)
Follow-up report No. 6 (20/02/2018)
Follow-up report No. 7 (04/03/2018)
Follow-up report No. 8 (28/03/2018)
Follow-up report No. 9 (04/07/2018)
New outbreaks (1)
Outbreak 1 (102/18 NAHPRI) Om Arm village, Sre Khtum, Keo Seima, Mondolkiri
Date of start of the outbreak 30/01/2018
Outbreak status Resolved (07/02/2018)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 77 14 14 63 0
Affected population On January 30th, 2018, backyard poultry’s owner in Om Arm village, Sre Khtum commune, Keo Seima district reported to Provincial Animal Health and Production Office (PAHPO) that there were 14 out of 60 chickens sick with suspected clinical signs of avian influenza. Two samples from chickens which died suddenly were collected by PAHPO staff and sent to National Animal Health and Production Research Institute (NAHPRI) for laboratory diagnosis and confirmation. On February 1st, 2018, the laboratory result confirmed positive of influenza A/H5N1. All susceptible birds in the infected premises have been culled.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 77 14 14 63 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 18.18% 18.18% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance within containment and/or protection zone
  • Stamping out
  • 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 01/02/2018 Positive
Institute Pasteur, Cambodia (Regional Reference Laboratory) Birds real-time PCR 02/02/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations