Bovine spongiform encephalopathy,
Information received on 04/02/2019 from Dr Pawel Niemczuk, Chief Veterinary Officer, Ministry of Agriculture and Rural Development, POL Ministry of Agriculture and Rural Development, VARSOVIE, Poland
Report type Immediate notification
Date of start of the event 24/01/2019
Date of confirmation of the event 31/01/2019
Report date 04/02/2019
Date submitted to OIE 04/02/2019
Date event resolved 20/02/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 03/2013
Manifestation of disease Sub-clinical infection
Causal agent Prion (atypical BSE type L)
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (04/02/2019)
Follow-up report No. 1 (11/02/2019)
Follow-up report No. 2 (18/02/2019)
Follow-up report No. 3 (27/02/2019)
Follow-up report No. 4 (04/03/2019)
Follow-up report No. 5 (12/03/2019)
Follow-up report No. 6 (18/03/2019)
Follow-up report No. 7 (26/03/2019)
Follow-up report No. 8 (11/04/2019)
Follow-up report No. 9 (21/05/2019)
Follow-up report No. 10 (23/07/2019)
New outbreaks (1)
Outbreak 1 Mirsk, Mirsk, Lwowek Slaski (0212), Dolnoslaskie
Date of start of the outbreak 24/01/2019
Outbreak status Resolved (20/02/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Cattle 50 1 0 3 0
Affected population Additionally, 19 cohort animals that had been alive were killed and carcasses were disposed of. They were all rapid tested for BSE with negative results.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Cattle 50 1 0 3 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Cattle 2.00% 0.00% 0.00% 6.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments The event concerns case of atypical BSE (L-type). According to the OIE Terrestrial Code, for the purposes of official BSE risk status recognition, BSE excludes 'atypical BSE' as a condition believed to occur spontaneously in all cattle populations at a very low rate. Therefore, this event does not have any influence on official BSE risk status recognition of Poland.
Control measures
Measures applied
  • Movement control inside the country
  • Traceability
  • Official disposal of carcasses, by-products and waste
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • 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) Cattle western blot 31/01/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations