OIE: 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.