Highly pathogenic avian influenza,
Sweden
Information received on 27/12/2016 from Dr Ingrid Eilertz, Chief Veterinary Officer Director and Head, Swedish Board of Agriculture Department for Animal Welfare and Health, Ministry for Rural Affairs, Jönköping, Sweden
Summary
Report type Follow-up report No. 4
Date of start of the event 14/11/2016
Date of confirmation of the event 23/11/2016
Report date 27/12/2016
Date submitted to OIE 27/12/2016
Date event resolved 07/04/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 05/03/2015
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
Related reports Immediate notification (23/11/2016)
Follow-up report No. 1 (06/12/2016)
Follow-up report No. 2 (12/12/2016)
Follow-up report No. 3 (21/12/2016)
Follow-up report No. 4 (27/12/2016)
Follow-up report No. 5 (09/01/2017)
Follow-up report No. 6 (03/02/2017)
Follow-up report No. 7 (12/02/2017)
Follow-up report No. 8 (17/02/2017)
Follow-up report No. 9 (13/03/2017)
Follow-up report No. 10 (17/05/2017)
Follow-up report No. 11 (22/05/2017)
Follow-up report No. 12 (26/06/2017)
Follow-up report No. 13 (28/06/2017)
Follow-up report No. 14 (01/08/2017)
New outbreaks (3)
Outbreak 1 Gotland, Sanda, Gotland, GOTLANDS LÄN
Date of start of the outbreak 03/12/2016
Outbreak status Resolved (23/12/2016)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Hooded Crow:Corvus cornix(Corvidae) 1 1 0 0
Affected population This crow (Corvus cornix) was found dead and sent to the National Veterinary Institute for analysis as part of the routine surveillance of avian influenza.
Outbreak 2 Norrköping, Norrköping, Norrköping, ÖSTERGÖTLANDS LÄN
Date of start of the outbreak 15/12/2016
Outbreak status Resolved (23/12/2016)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Eurasian Sparrowhawk:Accipiter nisus(Accipitridae) 1 1 0 0
Affected population This sparrowhawk (Accipiter nisus) was found dead and sent to the National Veterinary Institute for analysis as part of the routine surveillance of avian influenza.
Outbreak 3 Utö, Utö, Haninge, STOCKHOLMS LÄN
Date of start of the outbreak 17/12/2016
Outbreak status Resolved (23/12/2016)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0
Affected population This tufted duck (Aythya fuligula) was found dead and sent to the National Veterinary Institute for analysis as part of the routine surveillance of avian influenza.
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Hooded Crow:Corvus cornix(Corvidae) 1 1 0 0
Eurasian Sparrowhawk:Accipiter nisus(Accipitridae) 1 1 0 0
Tufted Duck:Aythya fuligula(Anatidae) 1 1 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Hooded Crow:Corvus cornix(Corvidae) ** ** 100.00% **
Eurasian Sparrowhawk:Accipiter nisus(Accipitridae) ** ** 100.00% **
Tufted Duck:Aythya fuligula(Anatidae) ** ** 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 All wild birds were sent to the National Veterinary Institute for analysis as part of the routine surveillance of avian influenza. Weekly follow-up reports on wild birds will only be sent if new cases are detected.
Control measures
Measures applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • 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
National Veterinary Institute (National laboratory) Eurasian Sparrowhawk real-time PCR 23/12/2016 Positive
National Veterinary Institute (National laboratory) Hooded Crow real-time PCR 23/12/2016 Positive
National Veterinary Institute (National laboratory) Tufted Duck real-time PCR 23/12/2016 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations