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2021-8-6 8:52:57

OIE: Highly pathogenic avian influenza(H5N8), Netherlands
submited by kickingbird at Nov, 18, 2020 12:2 PM from OIE

Information received on 17/11/2020 from Dr Christianne Bruschke, Chief Veterinary Officer , Agriculture, Nature and Food Quality, Ministry of Agriculture, Nature and Food Quality, The Hague, Netherlands
Report type Follow-up report No. 3
Date of start of the event 29/10/2020
Date of confirmation of the event 29/10/2020
Report date 17/11/2020
Date submitted to OIE 17/11/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 10/07/2018
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (30/10/2020)
Follow-up report No. 1 (07/11/2020)
Follow-up report No. 2 (13/11/2020)
Follow-up report No. 3 (17/11/2020)
New outbreaks (1)
Outbreak 1 Terwolde, Gelderland
Date of start of the outbreak 12/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 22040 5840 3840 18200 0
Affected population On 13 November 2020, a 3 km protection zone and a 10 km surveillance zone have been established around the outbreak in Terwolde. In the 3 km zone there are four other premises with poultry. All the premises in the 3 km zone have been screened. There were no signs of possible infection. All screening test results were negative. The subtype is H5N8 and is confirmed by the national reference laboratory. All susceptible animals on the infected premises have been killed.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 22040 5840 3840 18200 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 26.50% 17.42% 65.75% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
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) 13/11/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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