Information received on 03/02/2020 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
31/12/2019
Date of confirmation of the event
03/01/2020
Report date
03/02/2020
Date submitted to OIE
03/02/2020
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
20/04/2017
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 (22/01/2020)
Follow-up report No. 1 (03/02/2020)
New outbreaks (1)

Outbreak 1 (2020/15)
Rabity, Zalewo, Ilawski (2807), Warminsko-Mazurskie
Date of start of the outbreak
24/01/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
23351
5359
4168
19183
0
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
23351
5359
4168
19183
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
22.95%
17.85%
77.78%
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
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)
26/01/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.