Cambodia - 1 new outbreak of highly pathogenic avian influenza virus H5N1 in farm, Sen Sok, Phnom Penh (OIE, March 4, 2018)

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Highly pathogenic avian influenza, Cambodia

Information received on 04/03/2018 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. 7 Date of start of the event 22/11/2017 Date of confirmation of the event 06/12/2017 Report date 04/03/2018 Date submitted to OIE 04/03/2018 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 (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)

New outbreaks (1)

Outbreak 1 (128/18 NAHPRI) Tropang Raing Thmey Village, Khmourgn, Sen Sok, PHNOM PENH Date of start of the outbreak 15/02/2018 Outbreak status Resolved (22/02/2018) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 98 20 20 78 0 Affected population On February 15th, 2018, a farm owner in Tropang raing Thmey village (Sankat Thmourgn, Khan Sen Sok) reported morbidity and mortality in chickens to Institute Pasteur of Cambodia (IPC). IPC in collaboration with General Directorate for Animal Health and Production (GDAHP) collected six samples from chickens which had died suddenly and sent them to IPC for laboratory testing. On January 16th, 2018, the laboratory confirmed positive results for influenza A/H5N1. 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 98 20 20 78 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 20.41% 20.41% 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 Institute Pasteur of Cambodia (Regional Reference Laboratory) Birds real-time PCR 16/02/2018 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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