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#Analysis of recent #scientific #information on #avian #influenza A(#H7N9) virus - 10 February 2017 (@WHO, edited)

  Title : #Analysis of recent #scientific #information on #avian #influenza A(#H7N9) virus - 10 February 2017. Subject : Avian Influenza, ...

6 Feb 2017

Highly pathogenic #avian #influenza #H5N6, #Taiwan [infected #wildbirds] (#OIE, Feb. 6 ‘17)


Title: Highly pathogenic #avian #influenza #H5N6, #Taiwan [infected #wildbirds].

Subject: Avian Influenza, H5N6 subtype, wild birds epizootics in Taiwan.

Source: OIE, full page: (LINK).

Code: [     ]

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Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds) H5N6, Chinese Taipei

Information received on 06/02/2017 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 Immediate notification
    • Date of start of the event 02/02/2017
    • Date of confirmation of the event 05/02/2017
    • Report date 06/02/2017
    • Date submitted to OIE 06/02/2017
    • Reason for notification New strain of a listed disease in the country
    • Causal agent Highly pathogenic influenza A virus
    • Serotype H5N6
    • Nature of diagnosis Laboratory (advanced)
    • This event pertains to a defined zone within the country
  • New outbreaks
    • Summary of outbreaks
      • Total outbreaks: 1
        • Outbreak Location - HUALIEN COUNTY ( Yuli Township )
      • Total animals affected:  Species -  Susceptible -  Cases -  Deaths -  Destroyed -  Slaughtered
        • Anatidae (unidentified):Anatidae (Anatidae (incognita)) –  - … -  1  - 1 – 0 – 0
      • Outbreak statistics:  Species -  Apparent morbidity rate -  Apparent mortality rate -  Apparent case fatality rate -  Proportion susceptible animals lost*
        • Anatidae (unidentified):Anatidae (Anatidae (incognita)) -  ** -  ** -  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
    • The animal health authority, BAPHIQ, entrusts the Wild Bird Society of Taipei (a non-governmental organization) to conduct active surveillance of wild bird for avian influenza.
    • One dead young goose was found on a country road in Hualien County by the Wild Bird Society of Taipei and was sent to the National Laboratory (Animal Health Research Institute, AHRI) on 2 February 2017.
    • H5N6 subtype HPAI was detected and confirmed by the AHRI in the evening of 5 February 2017.
    • The HA and NA genomic sequences of the virus seem to share high similarity (99%) with those of the virus which has caused major outbreaks in Korea and Japan according to preliminary analysis by the AHRI.
    • The Local Disease Control Center (LDCC) disinfected the neighboring areas of the spot where the dead goose was found and has completed clinical examination and sampling of all poultry farms (2 duck farms) within 1 km radius of the spot.
    • All ducks in the 2 farms are clinically healthy.
    • Surrounding poultry farms within 3 km radius of the index spot will also be sampled as soon as possible and they are under intensified surveillance for 3 months to detect, if any, spreading of the virus.
    • Until 21 February 2017, all waterfowls of Hualien County must be slaughtered locally, no dispatch to other regions of the country is allowed.

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Keywords: OIE; Updates; Avian Influenza; H5N6 ; Wild Birds; Taiwan.

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