Netherlands - 1 new outbreak of highly pathogenic avian influenza H5N6 in a duck in a village, North Holland (OIE, February 27, 2018)

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

Information received on 27/02/2018 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. 3 Date of start of the event 09/12/2017 Date of confirmation of the event 13/12/2017 Report date 27/02/2018 Date submitted to OIE 27/02/2018 Reason for notification Recurrence of a listed disease Date of previous occurrence 16/05/2017 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N6 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (15/12/2017) Follow-up report No. 1 (22/12/2017) Follow-up report No. 2 (24/01/2018) Follow-up report No. 3 (27/02/2018)

New outbreaks (1)

Outbreak 1 (HPAI WB H5N6 2018-01) IJsselmeer, NOORD-HOLLAND Date of start of the outbreak 20/02/2018 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Village Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Greater Scaup:Aythya marila(Anatidae) 1 1 0 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Greater Scaup:Aythya marila(Anatidae) 1 1 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Greater Scaup:Aythya marila(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 This H5N6 subtype is a reassortment linked to H5N8 and not the Asian zoonotic H5N6.

Control measures Measures applied Vaccination permitted (if a vaccine exists) 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) Greater Scaup polymerase chain reaction (PCR) 23/02/2018 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=26023