Low pathogenic avian influenza (poultry), Korea (Rep. of) (WAHID Interface - OIE World Animal Health Information Database, 12/28/09, edited)

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Low pathogenic avian influenza (poultry), Korea (Rep. of) (WAHID Interface - OIE World Animal Health Information Database, 12/28/09, edited)

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

Information received on 28/12/2009 from Dr Kiyoon Chang, CVO & Director, Labelling, Quarantine and Inspection Division, Ministry of Food, Agriculture, Forestry (MIFAFF), Gyeonggi -Do, Korea (Rep. of)

• Summary
  • Report type Immediate notification
  • Start date 07/12/2009
  • Date of first confirmation of the event 25/12/2009
  • Report date 28/12/2009
  • Date submitted to OIE 28/12/2009
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 31/12/2008
  • Manifestation of disease Sub-clinical infection
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H5N2
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to a defined zone within the country

• New outbreaks
  • Outbreak 1 - Gobuk-myeon, Seo-san city, CH'UNGCH'ONG-NAMDO
    • Date of start of the outbreak 07/12/2009
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Farm
    • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
      • Birds - 26800 - 40 - 0 - 26800 - 0
      • Affected Population: Ducks

• Summary of outbreaks
  • Total outbreaks: 1
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 0.15% - 0.00% - 0.00% - 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

• Epidemiological comments
  • As part of the yearly surveillance programme, a member of the Livestock Health Control Association collected samples from a duck raising farm in Seo-san city and requested the test for avian influenza to the Chungchong-namdo Veterinary Research Institute (VRI) on 7 December 2009.
  • After it was positive by haemagglutination test, the sample was sent to the National Veterinary Research and Quarantine Service (NVRQS) on 22 December. In the course of the confirmatory test, the isolated virus was confirmed as H5 avian influenza virus on 24 December and finally confirmed as low pathogenic avian influenza virus (H5N2) by gene sequencing.
  • 26,800 ducks raised in the affected farm were culled and 176,000 eggs kept in the farm were destroyed. The whole procedure for burial and burning was completed on 26 December. Traceback investigation of epidemiologically related farms and enhanced surveillance on neighbouring farms are underway.
  • Note by the OIE: Animal Health Information Department: H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2009).

• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Screening
    • Disinfection of infected premises/establishment(s)
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • Zoning

• Diagnostic test results
  • Laboratory name and type National Veterinary Research and Quarantine Service (NVRQS) (National laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - gene sequencing - 25/12/2009 - Positive
      • Birds - real-time PCR - 25/12/2009 - Positive

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

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<cite cite="http://www.oie.int/wahis/public.php?page=single_report&pop=1&reportid=8804">WAHID Interface - OIE World Animal Health Information Database</cite>