OIE: Highly pathogenic avian influenza, Cambodia

Information received on 30/12/2017 from Dr Sen Sovann, Director General , Ministry of Agriculture, Forestry and Fisheries , General Directorate of Animal Health and Production (GDAHP), Phnom Penh, Cambodia
Summary
Report type Follow-up report No. 2
Date of start of the event 22/11/2017
Date of confirmation of the event 06/12/2017
Report date 30/12/2017
Date submitted to OIE 30/12/2017
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), Necropsy
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)
New outbreaks (1)
Outbreak 1 (586/17 NAHPRI) Tropang Russey Village, Chor Yo, Chamkar Leu, KG. CHAM
Date of start of the outbreak 15/12/2017
Outbreak status Resolved (27/12/2017)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 342 189 189 153 0
Affected population On 21/12/2017, poultry owners in Tropang Russey village reported high morbidity and mortality of chickens. Three samples of backyard chickens which died suddenly were collected by a district veterinarian and sent to the National Animal Heath and Production Research Institute (NAHPRI) for laboratory diagnosis and confirmation. On 22/12/2017, the laboratory result confirmed the positivity to H5N1 avian influenza virus. All susceptible poultry 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 342 189 189 153 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 55.26% 55.26% 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
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 22/12/2017 Positive
Pasteur Institute in Cambodia (Regional Laboratory) Birds real-time PCR 23/12/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.