OIE: Low pathogenic avian influenza (poultry), Korea (Rep. of)

Information received on 26/11/2007 from Dr Chang-Seob Kim, Director, Animal Health Division, Livestock Bureau , Ministry of Agriculture and Forestry (MAF), SEOUL, Korea (Rep. of)

Summary

Report type Immediate notification (Final report)
Start date 21/11/2007
Date of confirmation of event 23/11/2007
Report date 26/11/2007
Date submitted to OIE 26/11/2007
Date event resolved 26/11/2007
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 03/2007
Manifestation of disease Sub-clinical infection
Causal agent Low pathogenic avian influenza virus
Serotype H7N8
Nature of diagnosis Laboratory (basic), Laboratory (advanced)
Report pertains to Defined zone within the country

New outbreaks

Summary of outbreaks Total outbreaks: 1
Outbreak Location
  • KWANGJU-JIKHALSI (Yongdoo-dong)
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 3800 0 3800 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible removed*
Birds 0.00% 0.00% - 100.00%
* Removed from the susceptible population either through death, destruction or slaughter

Epidemiology

Source of infection
  • Unknown or inconclusive
Epidemiological comments As part of the national serological surveillance for avian influenza in the Republic of Korea, 2007/2008, the Korean Government has conducted tests against avian influenza virus on duck-raising farms across the country.
Avian influenza virus was isolated from pooled fecal samples collected from a duck-raising farm in Kwangju-Jikhalsi, south-western part of the Republic of Korea.
The virus was proved to be low pathogenic avian influenza virus serotype H7N8, but according to the Korean avian influenza emergency action plan, 19,200 ducklings in the affected farm and the three 3 neighbouring farms were stamped out.

Control measures

Measures already applied
  • Screening
  • Disinfection of infected premises/establishment(s)
  • Quarantine
  • Stamping out
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • None specified

Diagnostic test results

Laboratory name and type National Veterinary Research Quarantine Service (NVRQS) (National laboratory)
Tests and results
Species Test Test date Result
Birds competitive ELISA (c-ELISA) 21/11/2007 Positive
Birds reverse transcription – polymerase chain reaction (RT-PCR) 23/11/2007 Positive