Highly pathogenic avian influenza,
Information received on 13/01/2021 from Dr Bogdan Konopka, Chief Veterinary Officer, Ministry of Agriculture and Rural Development, General Veterinary Inspectorate, Warszaw, Poland
Report type Follow-up report No. 6
Date of start of the event 23/11/2020
Date of confirmation of the event 24/11/2020
Report date 13/01/2021
Date submitted to OIE 13/01/2021
Reason for notification Recurrence of a listed disease
Date of previous occurrence 13/05/2020
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 (26/11/2020)
Follow-up report No. 1 (03/12/2020)
Follow-up report No. 2 (08/12/2020)
Follow-up report No. 3 (21/12/2020)
Follow-up report No. 4 (28/12/2020)
Follow-up report No. 5 (07/01/2021)
Follow-up report No. 6 (13/01/2021)
New outbreaks (1)
Outbreak 1 (2021/4) Staw, Lubiszyn, gorzowski (0801), Lubuskie
Date of start of the outbreak 08/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 15600 15431 123 15477 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the commercial farm with slaughter turkey.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 15600 15431 123 15477 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 98.92% 0.79% 0.80% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Screening
  • Traceability
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Control of wildlife reservoirs
  • 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
National Veterinary Research Institute (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/01/2021 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations