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#Update: Increase in #Human #Infections with #Avian #Influenza #H7N9 Viruses During the 5th #Epidemic — #China, Oct. ‘16–Aug. 7 ‘17 (@CDCgov, edited)

Title : #Update: Increase in #Human #Infections with #Avian #Influenza #H7N9 Viruses During the 5th #Epidemic — #China, Oct. ‘16–Aug. 7 ‘17....

2 May 2017

Low pathogenic #avian #influenza #H5N2, #Taiwan [six #poultry #outbreaks] (#OIE, May 2 ‘17)

Title: Low pathogenic #avian #influenza #H5N2, #Taiwan [six #poultry #outbreaks].

Subject: Avian Influenza, H5N2 subtype, poultry epizootics in Taiwan.

Source: OIE, full page: (LINK).

Code: [     ]


Low pathogenic avian influenza (poultry) H5N2, Chinese Taipei


Information received on 01/05/2017 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. 5
    • Date of start of the event    12/01/2015
    • Date of confirmation of the event    14/01/2015
    • Report date    01/05/2017
    • Date submitted to OIE    01/05/2017
    • Reason for notification    Recurrence of a listed disease
    • Date of previous occurrence    2014
    • Manifestation of disease    Clinical disease
    • Causal agent    Low 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: 6
      • Total animals affected: Species    - Susceptible    - Cases    - Deaths    - Destroyed    - Slaughtered
        • Birds    - 94285    - **    - 2600    - 91485    - 200
      • Outbreak statistics: Species    - Apparent morbidity rate    - Apparent mortality rate    - Apparent case fatality rate    - Proportion susceptible animals lost*
        • Birds    - **    - 2.76%    - **    - 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   
    • Abnormal mortalities were observed in 5 poultry farms in Hsinchu County, Changhua County, Yunlin County, Kaohsiung City and Pingtung County.
    • Also suspected signs were observed in poultry carcasses during post-mortem inspection in 1 abattoir in Taipei City.
    • Samples were sent to the National Laboratory, the Animal Health Research Institute (AHRI) for diagnosis.
    • H5N2 subtype low pathogenic avian influenza (LPAI) was confirmed by AHRI.
    • These farms were put under movement restrictions.
    • The pathogenicity of the virus was subsequently confirmed by the AHRI as low pathogenic (less than 75% mortality of the tested chickens) on 18 Apirl 2017.
    • All animals on the infected farms were culled or slaughtered after being tested negative to virus isolation.
    • Thorough cleaning and disinfection were conducted after depopulation.
    • Surrounding poultry farms within 3 km radius of the infected farms were under intensified surveillance for 3 months.




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