Information received on 22/01/2021 from Mr Knut R?nningen, Director, Norwegian Food Safety Authority, Ministry of Agriculture and Food, Brumunddal, Norway
Summary
Report type
Follow-up report No. 3
Date of start of the event
22/11/2020
Date of confirmation of the event
27/11/2020
Report date
22/01/2021
Date submitted to OIE
22/01/2021
Reason for notification
First occurrence of a listed disease
Manifestation of disease
Clinical disease
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)
Follow-up report No. 2 (23/12/2020)
Follow-up report No. 3 (22/01/2021)
New outbreaks (3)

Outbreak 1
Bergen, Lille Lungeg?rdsvann, Bergen og Omland Dep, South and West Region , Hordaland
Date of start of the outbreak
11/01/2021
Outbreak status
Resolved (12/01/2021)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

2
2


Outbreak 2
Bergen, Tveitevannet, Bergen og Omland Dep, South and West Region , Hordaland
Date of start of the outbreak
13/01/2021
Outbreak status
Resolved (19/01/2021)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

1
1


Outbreak 3
Bergen, Lille Lungeg?rdsvann, Bergen og Omland Dep, South and West Region , Hordaland
Date of start of the outbreak
15/01/2021
Outbreak status
Resolved (21/01/2021)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mew Gull:Larus canus(Laridae)

1
1


Affected population
1 (one) wild Mew Gull (Larus canus) was found dead and sent for testing as a consequence of increased surveillance due to the ongoing outbreak of HPAI in wild birds (ref ADNS 2021/3, 14 HPAI WB).
Summary of outbreaks
Total outbreaks: 3
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

3
3


Mew Gull:Larus canus(Laridae)

1
1


Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Mute Swan:Cygnus olor(Anatidae)
**
**
100.00%
**
Mew Gull:Larus canus(Laridae)
**
**
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
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
Norwegian Veterinary Institute (National laboratory)
Mew Gull
real-time PCR
21/01/2021
Positive
Norwegian Veterinary Institute (National laboratory)
Mute Swan
real-time PCR
11/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.