Information received on 28/12/2020 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. 4
Date of start of the event 23/11/2020
Date of confirmation of the event 24/11/2020
Report date 28/12/2020
Date submitted to OIE 28/12/2020
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)
New outbreaks (2)
Outbreak 1 (2020/47) Szalejow Dolny, Klodzko, klodzki (0208), Dolnoslaskie
Date of start of the outbreak 18/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 81 59 59 22 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the non-commercial farm with hen.
Outbreak 2 (2020/49) Reklin, Siedlec, wolsztynski (3029), Wielkopolskie
Date of start of the outbreak 21/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 600 600 40 560 0
Affected population The outbreak of HPAI of serotype H5N8 was confirmed in the commercial farm with slaughter turkeys.
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 681 659 99 582 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 96.77% 14.54% 15.02% 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) 22/12/2020 Positive
National Veterinary Research Institute (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 23/12/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.