Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, 4/Nov/10, edited): Low Path A/H7N6

[Giuseppe]

Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, 11/04/10, edited)


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

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

Information received on 04/11/2010 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 27/10/2010
  • Date of first confirmation of the event 03/11/2010
  • Report date 04/11/2010
  • Date submitted to OIE 04/11/2010
  • Date event resolved 04/11/2010
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 17/10/2010
  • Manifestation of disease Sub-clinical infection
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H7N6
  • Nature of diagnosis Laboratory (basic), Laboratory (advanced)
  • This event pertains to a defined zone within the country

• New outbreaks
  • Summary of outbreaks, Total outbreaks: 1
    • Location(s) - CHOLLA-NAMDO (Sukma-ri, Jangsung-gun)
      • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 23410 - ** - 0 - 23410 - 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 continuous avian influenza surveillance programme, Jeollanam-do Institute of Livestock and Veterinary Science tested samples (f?ces and laryngo-pharyngeal swabs) collected from a duck farm in Sukma-ri on 27 October.
  • Haemagglutination test results were positive on 1 November. National Veterinary Research and Quarantine Service (NVRQS) found avian influenza antigen (H7) by PCR on 3 November and confirmed it as low pathogenic avian influenza virus (H7N6) by gene sequencing on 4 November.
  • As a precautionary measure, all poultry in the affected farm were culled on 3 November.
  • 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 (2010).

• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Screening
    • 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 - 04/11/2010 - Positive
      • Birds - polymerase chain reaction (PCR) - 03/11/2010 - Positive

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

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