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2021-1-25 14:52:15

OIE: Highly pathogenic avian influenza (H5N8), Sweden
submited by kickingbird at Nov, 20, 2020 10:37 AM from OIE

Information received on 18/11/2020 from Dr Hakan Henrikson, Chief Veterinary Officer, Swedish Board of Agriculture, Ministry of Enterprise and Innovation, J鰊k鰌ing, Sweden
Report type Immediate notification
Date of start of the event 13/11/2020
Date of confirmation of the event 16/11/2020
Report date 18/11/2020
Date submitted to OIE 18/11/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 29/04/2017
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 Ystad, L鰀erup, Ystad, Sk錸e L鋘
Date of start of the outbreak 13/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 5100 1800 1780 3320 0
Affected population This is a farm with turkeys for meat production.There are three buildings on the farm. The first one was empty at the date of suspicion, in the second building were 1800 birds with symptoms. In the third building were 3300 animals without symptoms. From 13 November the animal keeper noticed an increased mortality and sick animals.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 5100 1800 1780 3320 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 35.29% 34.90% 98.89% 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
Epidemiological comments A protection zone (3 km) and a surveillance zone (10 km) have been put in place around the infected farm and the euthanizing of animals has started. All other restrictions and necessary measures according to Directive 2005/94/EG are applied, including a prohibition of transportation of live birds, hatching eggs and not heat-treated poultry products in this area.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Traceability
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Official destruction of animal products
  • Disinfection
Diagnostic test results
Laboratory name and type Species Test Test date Result
National Veterinary Institute (National laboratory) Birds real-time PCR 16/11/2020 Positive
National Veterinary Institute (National laboratory) Birds virus sequencing 17/11/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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