Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, Dec. 17 2010, edited)

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Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, Dec. 17 2010, edited)


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

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

Information received on 17/12/2010 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
  • Start date 07/12/2010
  • Date of first confirmation of the event 16/12/2010
  • Report date 17/12/2010
  • Date submitted to OIE 17/12/2010
  • 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 H7N2
  • 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) - CHUNGCHEONGNAM-DO - (Nohwa-ri, Gyuam-myun, Buyeo-gun)
      • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 110 - 1 - 0 - 110 - 0
      • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
        • Birds - 0.91% - 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 a continuous avian influenza surveillance programme, samples (faeces, laryngo-pharyngeal swab) were collected from a poultry farm on 7 December.
  • HA test result in Chungcheongnam-do Veterinary Research Institute was positive on 16 December.
  • The NVRQS found avian influenza antigen (H7) by PCR on 16 December and confirmed it as low pathogenic avian influenza virus (H7N2) by gene sequencing on 17 December.
  • Ducks and chickens in the farm were culled on 16 December.
  • There is no other poultry farm within the area of 500m radius from the farm.
  • 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
    • Movement control inside the country
    • 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 - 17/12/2010 - Positive
      • Birds - polymerase chain reaction (PCR) - 16/12/2010 - Positive

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

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