Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Netherlands
Information received on 22/12/2017 from Dr Christianne Bruschke, Chief Veterinary Officer , Agriculture, Nature and Food Quality, Ministry of Agriculture, Nature and Food Quality, The Hague, Netherlands
Summary
Report type Follow-up report No. 1
Date of start of the event 09/12/2017
Date of confirmation of the event 13/12/2017
Report date 22/12/2017
Date submitted to OIE 22/12/2017
Date event resolved 05/04/2018
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)
Follow-up report No. 4 (23/03/2018)
Follow-up report No. 5 (04/04/2018)
New outbreaks (2)
Outbreak 1 (HPAI WB H5N6 2017-03) Harderwijk, Gelderland
Date of start of the outbreak 14/12/2017
Outbreak status Resolved (05/04/2018)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 1 1 0 0
Outbreak 2 (HPAI CB H5N6 2017-01) Biddinghuizen, Flevoland
Date of start of the outbreak 15/12/2017
Outbreak status Resolved (05/04/2018)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 15 15 2 13 0
Greylag Goose:Anser anser(Anatidae) 5 5 0 5 0
Indian Peafowl:Pavo cristatus(Phasianidae) 8 5 1 7 0
Numididae (unidentified):Numididae (incognita)(Numididae) 30 24 12 18 0
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 1 1 0 0
Mallard:Anas platyrhynchos(Anatidae) 15 15 2 13 0
Greylag Goose:Anser anser(Anatidae) 5 5 0 5 0
Indian Peafowl:Pavo cristatus(Phasianidae) 8 5 1 7 0
Numididae (unidentified):Numididae (incognita)(Numididae) 30 24 12 18 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Mute Swan:Cygnus olor(Anatidae) ** ** 100.00% **
Mallard:Anas platyrhynchos(Anatidae) 100.00% 13.33% 13.33% 100.00%
Greylag Goose:Anser anser(Anatidae) 100.00% 0.00% 0.00% 100.00%
Indian Peafowl:Pavo cristatus(Phasianidae) 62.50% 12.50% 20.00% 100.00%
Numididae (unidentified):Numididae (incognita)(Numididae) 80.00% 40.00% 50.00% 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) Greylag Goose polymerase chain reaction (PCR) 21/12/2017 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Indian Peafowl polymerase chain reaction (PCR) 21/12/2017 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Mallard polymerase chain reaction (PCR) 20/12/2017 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Mute Swan polymerase chain reaction (PCR) 19/12/2017 Positive
Wageningen Bioveterinary Research, Lelystad (National laboratory) Numididae (unidentified) polymerase chain reaction (PCR) 21/12/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations