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#Assessment of #risk associated with #influenza A(#H5N8) virus, 17 November 2016 (@WHO)

  Title : #Assessment of #risk associated with #influenza A(#H5N8) virus, 17 November 2016. Subject : Avian Influenza, H5N8 subtype, multi...

18 Nov 2016

Highly pathogenic #avian #influenza #H5N8, #Netherlands [four #wildbirds #epizootics] (#OIE, Nov. 18 ‘16)

 

Title: Highly pathogenic #avian #influenza #H5N8, #Netherlands [four #wildbirds #epizootics].

Subject: Avian Influenza, H5N8 subtype, multi-country epizootics in poultry and wild birds; The Netherlands.

Source: OIE, full page: (LINK).

Code: [     ]

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Highly pathogenic avian influenza H5N8, Netherlands

Information received on 18/11/2016 from Dr Christianne Bruschke, Chief Veterinary Officer , Ministry of Economic Affairs, Ministry of Economic Affairs, The Hague, Netherlands

  • Summary
    • Report type Follow-up report No. 2
    • Date of start of the event 08/11/2016
    • Date of confirmation of the event 10/11/2016
    • Report date 18/11/2016
    • Date submitted to OIE 18/11/2016
    • Reason for notification Reoccurrence of a listed disease
    • Date of previous occurrence 04/2015
    • Manifestation of disease Clinical disease
    • Causal agent Highly pathogenic avian influenza virus in wild birds
    • Serotype H5N8
    • Nature of diagnosis Clinical, Laboratory (advanced)
    • This event pertains to a defined zone within the country
    • Related reports
      • Immediate notification (11/11/2016) / Follow-up report No. 1 (15/11/2016) / Follow-up report No. 2 (18/11/2016)
  • New outbreaks (4)
    • Outbreak 1 (HPAI 2016/03 WB) - Slootdorp, NOORD-HOLLAND
      • Date of start of the outbreak 11/11/2016
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Great black-backed Gull: Larus marinus(Laridae) – … – 2 – 2 – 0 – 0
        • Common Teal: Anas crecca (Anatidae) – … – 1 – 1 – 0 – 0
        • Mew Gull: Larus canus (Laridae) – … – 2 – 2 – 0 – 0
        • Black-headed Gull: Larus ridibundus (Laridae) – … – 3 – 3 – 0 – 0
        • Tufted Duck: Aythya fuligula (Anatidae) – … – 1 – 1 – 0 – 0
        • Common Shelduck: Tadorna tadorna (Anatidae) – … – 1 – 1 – 0 – 0
          • Affected population Note: Black-headed gull now belongs to the genre Chroicocephalus ridibundus (formerly Larus ridibundus).
    • Outbreak 2 (HPAI 2016/04 WB) - Werkendam, NOORD-BRABANT
      • Date of start of the outbreak 14/11/2016
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Tufted Duck: Aythya fuligula (Anatidae) – … – 4 – 4 – 0 – 0
    • Outbreak 3 (HPAI 2016/06 WB) - Bergplas, ZUID-HOLLAND
      • Date of start of the outbreak 14/11/2016
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Tufted Duck: Aythya fuligula (Anatidae) – … – 1 – 1 – 0 – 0
    • Outbreak 4 (HPAI 2016/05 WB) - Oostzaan, NOORD-HOLLAND
      • Date of start of the outbreak 14/11/2016
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Anatidae (unidentified): Anatidae (incognita)(Anatidae) – … – 3 – 3 – 0 – 0
    • Summary of outbreaks
      • Total outbreaks: 4
        • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Great black-backed Gull: Larus marinus (Laridae) – … – 2 – 2 – 0 – 0
          • Common Teal: Anas crecca (Anatidae) – … – 1 – 1 – 0 – 0
          • Mew Gull: Larus canus (Laridae) – … – 2 – 2 – 0 – 0
          • Black-headed Gull: Larus ridibundus (Laridae) – … – 3 – 3 – 0 – 0
          • Tufted Duck: Aythya fuligula (Anatidae) – … – 6 – 6 – 0 – 0
          • Common Shelduck: Tadorna tadorna (Anatidae) – … – 1 – 1 – 0 – 0
          • Anatidae (unidentified): Anatidae (incognita)(Anatidae) – … – 3 – 3 – 0 – 0
        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Great black-backed Gull: Larus marinus (Laridae) – ** – ** - 100.00% – **
          • Common Teal: Anas crecca (Anatidae) – ** – ** - 100.00% – **
          • Mew Gull: Larus canus (Laridae) – ** – ** - 100.00% – **
          • Black-headed Gull: Larus ridibundus (Laridae) – ** – ** - 100.00% – **
          • Tufted Duck: Aythya fuligula (Anatidae) – ** – ** - 100.00% – **
          • Common Shelduck: Tadorna tadorna (Anatidae) – ** – ** - 100.00% – **
          • Anatidae (unidentified): Anatidae (incognita)(Anatidae) – ** – ** - 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
    • H5N8 was confirmed in 18 wild birds found in wetland areas near Slootdorp, Werkendam, Oostzaan and Bergplas.
  • Control measures
    • Measures applied
      • 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
      • Wageningen Bioveterinary Research, Lelystad (National laboratory) - Anatidae (unidentified) - polymerase chain reaction (PCR) - 16/11/2016 – Positive
      • Wageningen Bioveterinary Research, Lelystad (National laboratory) - Black-headed Gull - polymerase chain reaction (PCR) - 16/11/2016 – Positive
      • Wageningen Bioveterinary Research, Lelystad (National laboratory) - Common Shelduck - polymerase chain reaction (PCR) - 16/11/2016 – Positive
      • Wageningen Bioveterinary Research, Lelystad (National laboratory) - Common Teal - polymerase chain reaction (PCR) - 16/11/2016 – Positive
      • Wageningen Bioveterinary Research, Lelystad (National laboratory) - Great black-backed Gull - polymerase chain reaction (PCR) - 16/11/2016 – Positive
      • Wageningen Bioveterinary Research, Lelystad (National laboratory) - Mew Gull - polymerase chain reaction (PCR) - 16/11/2016 – Positive
      • Wageningen Bioveterinary Research, Lelystad (National laboratory) - Tufted Duck - polymerase chain reaction (PCR) - 16/11/2016 – Positive
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.

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Keywords: OIE; Updates; H5N8; Avian Influenza; Wild Birds; The Netherlands.

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