Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, May 21 2010, edited)

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Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, May 21 2010, edited)

[Source: OIE, Full PDF Document (LINK). Edited.]

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

Information received on 21/05/2010 from Dr Kiyoon Chang, CVO & Director, Labelling, Quarantine and Inspection 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
  • Start date 13/05/2010
  • Date of first confirmation of the event 20/05/2010
  • Report date 21/05/2010
  • Date submitted to OIE 21/05/2010
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 27/12/2009
  • Manifestation of disease Sub-clinical infection
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H7N7
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to a defined zone within the country

• New outbreaks
  • Summary of outbreaks
    • Total outbreaks: 2
      • Location(s) - CHOLLA-NAMDO (Wolya-myeon, Hampyeong-gun; Bongsan-myeon, Damyang-gun)
        • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
          • Birds - 53300 - ** - 0 - 53300 - 0

• Outbreak statistics
  • Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - ** - 0.00% - ** - 100.00%
    • * Removed from the susceptible population through death, destruction and/or slaughter
    • ** Not calculated because of missing information

• Epidemiology
  • Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive

• Epidemiological comments
  • As part of the avian influenza surveillance programme, Jeollanam-do Institute of Livestock and Veterinary Science took samples (faeces, laryngo-pharyngeal swabs and blood) from the farms on 13 May. Haemagglutination test results were positive on 18 May. The National Veterinary Research and Quarantine Service (NVRQS) found avian influenza antigen (H7) by PCR on 20 May and confirmed it as low pathogenic avian influenza virus (H7N7) by gene sequencing on 21 May.
  • The poultry in the farms were culled as a precautionary measure and disinfection is being implemented on 21 May.
  • 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
    • 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
      • Birds - gene sequencing - 21/05/2010 - Positive
      • Birds - polymerase chain reaction (PCR) - 20/05/2010 - Positive

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

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