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31 May 2018

Highly pathogenic #avian #influenza #H5N2, #Taiwan [three #poultry #outbreaks] (#OIE, May 31 ‘18)



Highly pathogenic #avian #influenza #H5N2, #Taiwan [three #poultry #outbreaks].


Avian Influenza, H5N2 subtype, poultry epizootics in Taiwan.


OIE, full page: (LINK).


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Highly pathogenic avian influenza H5N2, Chinese Taipei


Information received on 30/05/2018 from Dr Tai-Hwa Shih, Chief Veterinary Officer, Deputy Director General, Bureau of Animal and Plant Health Inspection and Quarantine Council of Agriculture Executive Yuan, Ministry of Agriculture, Taipei, Chinese Taipei

  • Summary
    • Report type    Follow-up report No. 101
    • Date of start of the event    07/01/2015
    • Date of confirmation of the event    11/01/2015
    • Report date    28/05/2018
    • Date submitted to OIE    30/05/2018
    • Reason for notification    Recurrence of a listed disease
    • Date of previous occurrence    23/07/2014
    • Manifestation of disease    Clinical disease
    • Causal agent    Highly pathogenic avian influenza virus
    • Serotype    H5N2
    • Nature of diagnosis    Clinical, Laboratory (advanced)
    • This event pertains to    a defined zone within the country
  • Summary of outbreaks   
    • Total outbreaks: 3
      • Total animals affected: Species    - Susceptible    - Cases    - Deaths    - Killed and disposed of    - Slaughtered
        • Birds    - 18867    - 1637 **    - 1637    - 17230    - 0
      • Outbreak statistics: Species    - Apparent morbidity rate    - Apparent mortality rate    - Apparent case fatality rate    - Proportion susceptible animals lost*
        • Birds    - **    - 8.68%    - **    - 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   
    • Samples from Yunlin County and Tainan City were sent to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis.
      • Highly pathogenic avian influenza H5N2 subtype was confirmed by AHRI.
      • The infected farms have been placed under movement restriction.
      • All animals on the infected farms have been culled.
      • Thorough cleaning and disinfection have been conducted after stamping out operation.
      • Surrounding poultry farms within 3 km radius of the infected farms are under intensified surveillance for three months.
    • Suspected signs were observed in poultry carcasses during post-mortem inspection in one abattoir in Taipei City.
      • Samples were sent to the AHRI for diagnosis.
      • H5N2 subtype HPAI was confirmed by the AHRI.
      • The carcasses were destroyed and thorough cleaning and disinfection have been conducted in the abattoir.
      • After tracing back to the farm of origin, any positive results will be included in follow-up reports.




Keywords: OIE; Updates; Avian Influenza; H5N2 ; Poultry; Taiwan.