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. 1
Date of start of the event
08/12/2020
Date of confirmation of the event
09/12/2020
Report date
21/12/2020
Date submitted to OIE
21/12/2020
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
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)
New outbreaks (3)

Outbreak 1 (2020/3)
Gryfino, Gryfino, gryfinski (3206), Zachodnio-Pomorskie
Date of start of the outbreak
09/12/2020
Outbreak status
Resolved (11/12/2020)
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 tundra bean goose (Anser serrirostris) found on 9 December 2020 in gryfinski district.
Outbreak 2 (2020/4)
Komilowo, Kobylnica, slupski (2212), Pomorskie
Date of start of the outbreak
16/12/2020
Outbreak status
Resolved (17/12/2020)
Epidemiological unit
Not applicable
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Whooper Swan:Cygnus cygnus(Anatidae)

1
1
0
0
Affected population
Serotype H5N8 was confirmed in swan found on 16 December 2020 on the protection area established in slupski district due to HPAI outbreak in poultry.
Outbreak 3 (2020/5)
Kwakowo, Kobylnica, slupski (2212), Pomorskie
Date of start of the outbreak
16/12/2020
Outbreak status
Resolved (17/12/2020)
Epidemiological unit
Not applicable
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Greylag Goose:Anser anser(Anatidae)

1
1
0
0
Affected population
Serotype H5N8 was confirmed in goose found on 16 December 2020 on the protection area established in slupski district due to HPAI outbreak in poultry.
Summary of outbreaks
Total outbreaks: 3
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Bean Goose:Anser fabalis(Anatidae)

1
1
0
0
Whooper Swan:Cygnus cygnus(Anatidae)

1
1
0
0
Greylag Goose:Anser anser(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%
**
Whooper Swan:Cygnus cygnus(Anatidae)
**
**
100.00%
**
Greylag Goose:Anser anser(Anatidae)
**
**
100.00%
**
*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

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)
11/12/2020
Positive
National Veterinary Research Institute (National laboratory)
Greylag Goose
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
17/12/2020
Positive
National Veterinary Research Institute (National laboratory)
Whooper Swan
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
17/12/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.