Information received on 09/12/2020 from Mr Knut R?nningen, Director, Norwegian Food Safety Authority, Ministry of Agriculture and Food, Brumunddal, Norway
Summary
Report type Follow-up report No. 1
Date of start of the event 22/11/2020
Date of confirmation of the event 27/11/2020
Report date 09/12/2020
Date submitted to OIE 09/12/2020
Reason for notification First occurrence of a listed disease in the country
Causal agent Highly pathogenic influenza A virus
Serotype H5N8
Nature of diagnosis Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (30/11/2020)
Follow-up report No. 1 (09/12/2020)
New outbreaks (3)
Outbreak 1 Bergen, Fana, Bergen Area Department, South and West Region , Hordaland
Date of start of the outbreak 22/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Great black-backed Gull:Larus marinus(Laridae) 1 1
Outbreak 2 Klepp, Skasheim, S?r-Rogaland, Sirdal og Flekkefjord Department, South and West Region , Rogaland
Date of start of the outbreak 28/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Pink-footed Goose:Anser brachyrhynchus(Anatidae) 1 1
Affected population The goose was shot dead
Outbreak 3 H?, N?rb?, S?r-Rogaland, Sirdal og Flekkefjord Department, South and West Region , Rogaland
Date of start of the outbreak 30/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Zoo
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 58 14 14 44 0
Affected population These "other captive birds" have either died between the first sample and the date of confirmation or been euthanized after the confirmation. There has not been enforced any zones around the holding as the Norwegian Food Safety Authority has done a comprehensive assessment on the risk of transmission from this holding versus other wild birds in the area based on animal health and public health assessments, and with the utmost vigilance to ensure that the chosen handling does not impair the control/handling of the outbreak. This is decided with legal basis in the Regulations on combating avian influenza in poultry and other captive birds, which implements the Council Directive 2005/94/EC of 20 December 2005 on Community measures for the control of avian influenza. In addition, most of the animals had already been brought inside a building and kept there as a result of the "curfew" regulation in high-risk areas entered into force on the 27 November 2020 (Regulations on preventive measures to prevent transmission of highly pathogenic avian influenza from wild birds to poultry and other captive birds). The rest of the animals, due to the risk of compromising their welfare, was confined in the same holding such that they did not have contact with other poultry, and all reasonable steps was taken to minimize their contact with wild birds from the 27 November.
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Great black-backed Gull:Larus marinus(Laridae) 1 1
Pink-footed Goose:Anser brachyrhynchus(Anatidae) 1 1
Birds 58 14 14 44 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Great black-backed Gull:Larus marinus(Laridae) ** ** 100.00% **
Pink-footed Goose:Anser brachyrhynchus(Anatidae) ** ** ** **
Birds 24.14% 24.14% 100.00% 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
Control measures
Measures applied
Surveillance outside containment and/or protection zone
Surveillance within containment and/or protection zone
Quarantine
Official disposal of carcasses, by-products and waste
Stamping out
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
Norwegian Veterinary Institute (National laboratory) Birds real-time PCR 03/12/2020 Positive
Norwegian Veterinary Institute (National laboratory) Great black-backed Gull real-time PCR 03/12/2020 Positive
Norwegian Veterinary Institute (National laboratory) Pink-footed Goose real-time PCR 27/11/2020 Positive
Norwegian Veterinary Institute (National laboratory) Pink-footed Goose real-time PCR 02/12/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.