African swine fever,
Latvia
Information received on 11/08/2020 from Dr Maris Balodis, Chief Veterinary Officer & Director General, Food and Veterinary Service, Ministry of Agriculture, Riga, Latvia
Summary
Report type Follow-up report No. 29
Date of start of the event 02/01/2020
Date of confirmation of the event 02/01/2020
Report date 11/08/2020
Date submitted to OIE 11/08/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 30/12/2019
Manifestation of disease Clinical disease
Causal agent African swine fever virus
Nature of diagnosis Clinical, Laboratory (advanced), Necropsy
This event pertains to the whole country
Related reports Immediate notification (07/01/2020)
Follow-up report No. 1 (14/01/2020)
Follow-up report No. 2 (21/01/2020)
Follow-up report No. 3 (28/01/2020)
Follow-up report No. 4 (04/02/2020)
Follow-up report No. 5 (13/02/2020)
Follow-up report No. 6 (19/02/2020)
Follow-up report No. 7 (24/02/2020)
Follow-up report No. 8 (04/03/2020)
Follow-up report No. 9 (12/03/2020)
Follow-up report No. 10 (17/03/2020)
Follow-up report No. 11 (24/03/2020)
Follow-up report No. 12 (31/03/2020)
Follow-up report No. 13 (07/04/2020)
Follow-up report No. 14 (16/04/2020)
Follow-up report No. 15 (22/04/2020)
Follow-up report No. 16 (28/04/2020)
Follow-up report No. 17 (06/05/2020)
Follow-up report No. 18 (13/05/2020)
Follow-up report No. 19 (19/05/2020)
Follow-up report No. 20 (26/05/2020)
Follow-up report No. 21 (09/06/2020)
Follow-up report No. 22 (16/06/2020)
Follow-up report No. 23 (25/06/2020)
Follow-up report No. 24 (07/07/2020)
Follow-up report No. 25 (14/07/2020)
Follow-up report No. 26 (21/07/2020)
Follow-up report No. 27 (28/07/2020)
Follow-up report No. 28 (05/08/2020)
Follow-up report No. 29 (11/08/2020)
Follow-up report No. 30 (18/08/2020)
Follow-up report No. 31 (25/08/2020)
Follow-up report No. 32 (01/09/2020)
Follow-up report No. 33 (08/09/2020)
Follow-up report No. 34 (15/09/2020)
Follow-up report No. 35 (22/09/2020)
New outbreaks (10)
Outbreak 1 Jurkalnes parish, Ventspils county, Ventspils
Date of start of the outbreak 03/08/2020
Outbreak status Resolved (05/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 1 0 0
Outbreak 2 Aronas parish, Madonas county, Madonas
Date of start of the outbreak 03/08/2020
Outbreak status Resolved (05/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 0 1 0
Outbreak 3 Durbes parish, Durbes county, Durbes
Date of start of the outbreak 04/08/2020
Outbreak status Resolved (06/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 0 1 0
Outbreak 4 Lazas parish, Aizputes county, Aizputes
Date of start of the outbreak 04/08/2020
Outbreak status Resolved (06/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 1 0 0
Outbreak 5 Lutrinu parish, Saldus county, Saldus
Date of start of the outbreak 05/08/2020
Outbreak status Resolved (07/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 0 1 0
Outbreak 6 Zirnu parish, Saldus county, Saldus
Date of start of the outbreak 05/08/2020
Outbreak status Resolved (07/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 0 1 0
Outbreak 7 Gudenieku parish, Kuldigas county, Kuldīgas
Date of start of the outbreak 05/08/2020
Outbreak status Resolved (07/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 2 2 0 0
Outbreak 8 Gudenieku parish, Kuldigas county, Kuldīgas
Date of start of the outbreak 05/08/2020
Outbreak status Resolved (07/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 1 0 0
Outbreak 9 Iecavas parish, Iecavas county, Iecavas
Date of start of the outbreak 06/08/2020
Outbreak status Resolved (08/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 1 0 1 0
Outbreak 10 Gudenieku parish, Kuldigas county, Kuldīgas
Date of start of the outbreak 07/08/2020
Outbreak status Resolved (09/08/2020)
Epidemiological unit Forest
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 7 7 0 0
Summary of outbreaks Total outbreaks: 10
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Wild boar:Sus scrofa(Suidae) 17 12 5 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Wild boar:Sus scrofa(Suidae) ** ** 70.59% **
*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
Epidemiological comments African swine fever positive wild boars were hunted or found dead within the restricted area listed under the zones of Annex to European Commission Implementing Decision 2014/709/EU.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Control of wildlife reservoirs
  • Zoning
  • 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
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar immunoperoxidase monolayer assay (IPMA) 03/08/2020 Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar immunoperoxidase monolayer assay (IPMA) 04/08/2020 Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar immunoperoxidase monolayer assay (IPMA) 05/08/2020 Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar immunoperoxidase monolayer assay (IPMA) 06/08/2020 Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar real-time PCR 03/08/2020 Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar real-time PCR 04/08/2020 Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar real-time PCR 05/08/2020 Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory) Wild boar real-time PCR 07/08/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations