Highly pathogenic avian influenza,
Poland
Information received on 21/12/2020 from Dr Bogdan Konopka, Chief Veterinary Officer, Ministry of Agriculture and Rural Development, General Veterinary Inspectorate, Warszaw, Poland
Summary
Report type Follow-up report No. 3
Date of start of the event 23/11/2020
Date of confirmation of the event 24/11/2020
Report date 21/12/2020
Date submitted to OIE 21/12/2020
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 a defined zone within the 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 (5)
Outbreak 1 (2020/42) Tarnowa, Rakoniewice, grodziski (3005), Wielkopolskie
Date of start of the outbreak 11/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 32965 12725 113 32852 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the commercial farm with turkey broilers.
Outbreak 2 (2020/41) Wielichowo-Wies, Wielichowo, grodziski (3005), Wielkopolskie
Date of start of the outbreak 12/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 199106 73950 305 198801 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the commercial farm with laying hens.
Outbreak 3 (2020/40) Reklinek, Siedlec, wolsztynski (3029), Wielkopolskie
Date of start of the outbreak 13/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 12636 12589 47 12589 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the commercial farm with turkey broilers.
Outbreak 4 (2020/44) Chobienice, Siedlec, wolsztynski (3029), Wielkopolskie
Date of start of the outbreak 13/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 30488 132 132 30356 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the commercial farm with slaughter turkey.
Outbreak 5 (2020/45) Lubosina, Pniewy, szamotulski (3024), Wielkopolskie
Date of start of the outbreak 15/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10200 2000 200 10000 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the commercial farm with slaughter turkey.
Summary of outbreaks Total outbreaks: 5
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 285395 101396 797 284598 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 35.53% 0.28% 0.79% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
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) 16/12/2020 Positive
National Veterinary Research Institute (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 14/12/2020 Positive
National Veterinary Research Institute (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 15/12/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations