Information received on 26/01/2021 from Dr Hanne Larsen, Chief Veterinary Officer, Danish Veterinary and Food Administration, Ministry of Environment and Food , Glostrup, Denmark
Summary
Report type
Follow-up report No. 1
Date of start of the event
15/11/2020
Date of confirmation of the event
16/11/2020
Report date
26/01/2021
Date submitted to OIE
26/01/2021
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
22/11/2016
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic avian influenza virus
Serotype
H5N8
Nature of diagnosis
Laboratory (advanced)
This event pertains to
the whole country
Related reports
Immediate notification (17/11/2020)
Follow-up report No. 1 (26/01/2021)
New outbreaks (1)

Outbreak 1
Viborg, Viborg, West
Date of start of the outbreak
31/12/2020
Outbreak status
Resolved (08/01/2021)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
9415


9415
0
Affected population
On January 1st 2021, highly pathogenic avian influenza (subtype H5N8) was confirmed in a poultry holding breeding mallards and pheasants for restocking supplies of game. The population of the holding consisted of 5,976 pheasants, 3,211 mallards, 24 ornamental ducks, 45 ornamental geese, 16 ornamental pheasants and 143 hens. All susceptible animals at the infected holding were killed and the carcasses disposed by rendering on 3rd to 8th January 2021.
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
9415
**

9415
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
**
**
**
**
*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
The Danish Veterinary and Food Administration has established zones of 3 and 10 km around the holdings and has implemented the necessary measures in accordance with Council Directive 2005/94/EC.

Control measures
Measures applied
Movement control inside the country
Surveillance within containment and/or protection zone
Traceability
Official disposal of carcasses, by-products and waste
Stamping out
Zoning
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
Statens Serum Institut (National laboratory)
Birds
reverse transcription - polymerase chain reaction (RT-PCR)
01/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.