Highly pathogenic avian influenza,
Information received on 27/02/2018 from Dr Christianne Bruschke, Chief Veterinary Officer , Agriculture, Nature and Food Quality, Ministry of Agriculture, Nature and Food Quality, The Hague, Netherlands
Report type Immediate notification
Date of start of the event 24/02/2018
Date of confirmation of the event 26/02/2018
Report date 27/02/2018
Date submitted to OIE 27/02/2018
Date event resolved 10/07/2018
Reason for notification Recurrence of a listed disease
Date of previous occurrence 08/12/2017
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 (27/02/2018)
Follow-up report No. 1 (14/03/2018)
Follow-up report No. 2 (24/04/2018)
Follow-up report No. 3 (10/07/2018)
New outbreaks (1)
Outbreak 1 (HPAI H5N6 2018-01) Olderkerk, Groningen
Date of start of the outbreak 24/02/2018
Outbreak status Resolved (10/07/2018)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 37866 230 37636 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 37866 ** 230 37636 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 0.61% ** 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments On 25 February 2018, a 3 km surveillance zone and a 10 km protection zone have been established. In the 3 km zone there are three other premises. All susceptible animals on the infected premises have been killed. All premises in the 3 km zone have been screened. All samples of the screened premises tested negative. This H5N6 subtype is a reassortment linked to H5N8 and not the Asian zoonotic H5N6.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Stamping out
  • Control of wildlife reservoirs
  • Zoning
  • Disinfection
  • 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) Birds polymerase chain reaction (PCR) 26/02/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations