Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Information received on 10/12/2020 from Dr Bogdan Konopka, Chief Veterinary Officer, Ministry of Agriculture and Rural Development, General Veterinary Inspectorate, Warszaw, Poland
Report type Immediate notification
Date of start of the event 08/12/2020
Date of confirmation of the event 09/12/2020
Report date 10/12/2020
Date submitted to OIE 10/12/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 07/01/2020
Manifestation of disease Clinical disease
Causal agent Highly pathogenic influenza A virus
Serotype H5N8
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (10/12/2020)
Follow-up report No. 1 (21/12/2020)
Follow-up report No. 2 (07/01/2021)
Follow-up report No. 3 (18/01/2021)
New outbreaks (1)
Outbreak 1 (2020/2) Nialek Wielki, Wolsztyn, wolsztynski (3029), Wielkopolskie
Date of start of the outbreak 08/12/2020
Outbreak status Resolved (10/12/2020)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Bean Goose:Anser fabalis(Anatidae) 1 1 0 0
Affected population Serotype H5N8 was confirmed in taiga bean goose found on 8 December 2020 within the surveillance area established in Wolsztynski district due to outbreaks of highly pathogenic avian influenza in poultry.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Bean Goose:Anser fabalis(Anatidae) 1 1 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Bean Goose:Anser fabalis(Anatidae) ** ** 100.00% **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Control of wildlife reservoirs
  • 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 Research Institute (National laboratory) Bean Goose real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/12/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations