Highly pathogenic avian influenza, Korea (Rep. of) (OIE, Dec. 09 2010, edited)

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Highly pathogenic avian influenza, Korea (Rep. of) (OIE, Dec. 09 2010, edited)


[Source: OIE, full PDF document, (LINK). Edited.]

Highly pathogenic avian influenza, Korea (Rep. of)

Information received on 09/12/2010 from Dr Kiyoon Chang, CVO & Director, Quarantine Policy Division, Food Safety & Consumer Affairs Policy Bureau, MIFAFF (Ministry of Food, Agriculture, Forestry and Fisheries) , Gyeonggi -Do, Korea (Rep. of)

• Summary
  • Report type Immediate notification (Final report)
  • Start date 29/11/2010
  • Date of first confirmation of the event 07/12/2010
  • Report date 09/12/2010
  • Date submitted to OIE 09/12/2010
  • Date event resolved 07/12/2010
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 15/05/2008
  • Manifestation of disease Sub-clinical infection
  • Causal agent Highly pathogenic avian influenza virus
  • Serotype H5N1
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to a defined zone within the country

• New outbreaks
  • Summary of outbreaks
    • Total outbreaks: 1
    • Location(s) - CHOLLA-BUKDO (Chunpo-ri, Chunpo-myun, Iksan city)
      • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Wild species - 39 - 1 - 0 - 0 - 0
    • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
      • Wild species - 2.56% - 0.00% - 0.00% - 0.00%
      • * 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 a continuous avian influenza surveillance programme, 39 wild birds were captured and samples (faeces, laryngo-pharyngeal swab) were collected.
  • The NVRQS found avian influenza antigen (H5) by PCR and confirmed it as highly pathogenic avian influenza (H5N1) virus by gene sequencing from one mallard duck on 7 December 2010.
  • Clinical surveillance and disinfection on the neighbouring poultry farms were enhanced.

• Control measures
  • Measures applied
    • Movement control inside the country
    • Zoning
    • Disinfection of infected premises/establishment(s)
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • No other measures

• Diagnostic test results
  • Laboratory name and type National Veterinary Research and Quarantine Service (NVRQS) (National laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Wild species - gene sequencing - 07/12/2010 - Positive
      • Wild species - reverse transcription - polymerase chain reaction (RT-PCR) - 07/12/2010 - Positive

• Future Reporting
  • The event is resolved. No more reports will be submitted.

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