Highly pathogenic avian influenza,
Information received on 04/01/2021 from Dr Hakan Henrikson, Chief Veterinary Officer, Swedish Board of Agriculture, Ministry of Enterprise and Innovation, Jönköping, Sweden
Report type Immediate notification
Date of start of the event 02/01/2021
Date of confirmation of the event 03/01/2021
Report date 04/01/2021
Date submitted to OIE 04/01/2021
Reason for notification Recurrence of a listed disease
Date of previous occurrence 19/11/2020
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (04/01/2021)
Follow-up report No. 1 (12/01/2021)
Follow-up report No. 2 (14/01/2021)
Follow-up report No. 3 (18/01/2021)
New outbreaks (1)
Outbreak 1 Blentarp, Blentarp, Sjöbo, Skåne Län
Date of start of the outbreak 02/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 84864 4784 4784 80080 0
Affected population This is an establishment with parent poultry for the production of day-old broiler chickens. It is divided into 12 buildings (1-12) that constitute seven separate epidemiological units. Signs (high mortality) were seen in house 7, which constitutes an epidemiological unit with house 8. On 10 January 2021, signs of increased mortality have been seen in house 11, which constitutes an epidemiological unit with house 12. On 15 January, signs of a slight increase of mortality was detected in house 2, which constitutes an epidemiological unit with house 1.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 84864 4784 4784 80080 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 5.64% 5.64% 100.00% 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 establishment. All the poultry in this epidemiological unit (house 7 and 8) will be euthanized. All other restrictions and necessary measures according to Directive 2005/94/EG are/will be 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
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Disinfection
Diagnostic test results
Laboratory name and type Species Test Test date Result
National Veterinary Institute (National laboratory) Birds real-time PCR 03/01/2021 Positive
National Veterinary Institute (National laboratory) Birds virus sequencing 03/01/2021 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations