Highly pathogenic avian influenza,
Information received on 20/02/2018 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. 6
Date of start of the event 22/11/2017
Date of confirmation of the event 06/12/2017
Report date 20/02/2018
Date submitted to OIE 20/02/2018
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 ( 127/18 NAHPRI) Prey Phdao Village, Sdao Koang, Ba Phnom, Prey Veng
Date of start of the outbreak 11/02/2018
Outbreak status Resolved (17/02/2018)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 530 184 184 346 0
Affected population On February 11th, 2018, a backyard poultry’s owner in Prey Phdao village (Sdao Koang commune, Ba Phnom district, Prey Veng province) reported high morbidity and mortality of chickens to the Provincial Animal Health and Production Office. Two samples from chickens which died suddenly were collected by provincial veterinarians and sent to the National Animal Health and Production Research Institute (NAHPRI) for confirmation. On February 13th, 2018, the laboratory result confirmed the positivity to H5N1 avian influenza. All susceptible birds in the infected premise have been culled.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 530 184 184 346 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 34.72% 34.72% 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
  • Disinfection
  • Stamping out
  • Surveillance within containment and/or protection zone
  • Movement control inside the country
  • 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 13/02/2018 Positive
Institute Pasteur du Cambodge (Regional Reference Laboratory) Birds real-time PCR 13/02/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations