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Low pathogenic avian influenza (poultry) H5N2, Chinese Taipei (OIE, August 2 2013): 1 New Outbreak

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  • Low pathogenic avian influenza (poultry) H5N2, Chinese Taipei (OIE, August 2 2013): 1 New Outbreak

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


    Low pathogenic avian influenza (poultry) H5N2, Chinese Taipei


    Information received on 02/08/2013 from Dr Ping-Cheng Yang, Director, Animal Technology Institute Taοwan, Council of Agriculture, Taοwan, Chinese Taipei
    • Summary
      • Report type Follow-up report No. 8
      • Date of start of the event 12/11/2012
      • Date of pre-confirmation of the event 20/11/2012
      • Report date 02/08/2013
      • Date submitted to OIE 02/08/2013
      • Reason for notification Reoccurrence of a listed disease
      • Date of previous occurrence 13/07/2012
      • 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
      • Related reports
        • Immediate notification (22/11/2012)
        • Follow-up report No. 1 (21/12/2012)
        • Follow-up report No. 2 (04/01/2013)
        • Follow-up report No. 3 (18/01/2013)
        • Follow-up report No. 4 (15/03/2013)
        • Follow-up report No. 5 (18/04/2013)
        • Follow-up report No. 6 (19/04/2013)
        • Follow-up report No. 7 (03/06/2013)
        • Follow-up report No. 8 (02/08/2013)
    • New outbreaks (1)
      • Outbreak 1 - Yuli Township, HUA-LIEN
        • Date of start of the outbreak 19/06/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 11672 – 20 – 0 – 0 – 0
          • Affected population duck
    • Summary of outbreaks
      • Total outbreaks: 1
        • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds – 11672 – 20 – 0 – 0 – 0
        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Birds - 0.17% - 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
      • The low pathogenic viral infection was detected on a meat-type duck farm in the process of active surveillance and identified as H5N2 strain by virus isolation.
      • Movement restriction and investigation were implemented on the infected farm.
      • The ducks within the farm were normal without clinical signs.
      • Subsequently, the national laboratory confirmed this H5N2 outbreak as LPAI by virological tests and pathogenicity test on 2 August 2013.
      • The surveillance of poultry farms around the H5N2 affected farm is in progress.
      • 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 (2012).
    • 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 – Species – Test - Test date – Result
        • Animal Health Research Institute (National laboratory) – Birds - gene sequencing - 05/07/2013 – Negative
        • Animal Health Research Institute (National laboratory) – Birds - intravenous pathogenicity index (IVPI) test - 02/08/2013 – Negative
        • Animal Health Research Institute (National laboratory) – Birds - virus isolation - 02/07/2013 – Positive
    • Future Reporting
      • The event is continuing. Weekly follow-up reports will be submitted.

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