African swine fever,
Latvia

Information received on 28/07/2020 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. 27
Date of start of the event	02/01/2020
Date of confirmation of the event	02/01/2020
Report date	28/07/2020
Date submitted to OIE	28/07/2020
Date event resolved	30/12/2020
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) Follow-up report No. 36 (29/09/2020) Follow-up report No. 37 (06/10/2020) Follow-up report No. 38 (14/10/2020) Follow-up report No. 39 (20/10/2020) Follow-up report No. 40 (28/10/2020) Follow-up report No. 41 (03/11/2020) Follow-up report No. 42 (10/11/2020) Follow-up report No. 43 (17/11/2020) Follow-up report No. 44 (25/11/2020) Follow-up report No. 45 (04/12/2020) Follow-up report No. 46 (08/12/2020) Follow-up report No. 47 (15/12/2020) Follow-up report No. 48 (22/12/2020) Follow-up report No. 49 (30/12/2020)

New outbreaks (7)

Outbreak 1

Turlavas parish, Kuldigas county, Kuldīgas

Date of start of the outbreak

21/07/2020

Outbreak status

Resolved (23/07/2020)

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

Dzukstes parish, Tukuma county, Tukuma

Date of start of the outbreak

22/07/2020

Outbreak status

Resolved (24/07/2020)

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

Ergemes parish, Valkas county, Valkas

Date of start of the outbreak

22/07/2020

Outbreak status

Resolved (24/07/2020)

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

Iles parish, Auces county, Auces

Date of start of the outbreak

22/07/2020

Outbreak status

Resolved (24/07/2020)

Epidemiological unit

Forest

Affected animals

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Wild boar:Sus scrofa(Suidae)		1	0	1	0

Outbreak 5

Pelcu parish, Kuldigas county, Kuldīgas

Date of start of the outbreak

22/07/2020

Outbreak status

Resolved (24/07/2020)

Epidemiological unit

Forest

Affected animals

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Wild boar:Sus scrofa(Suidae)		2	0	2	0

Outbreak 6

Rugaju parish, Rugaju county, Rugaju

Date of start of the outbreak

23/07/2020

Outbreak status

Resolved (25/07/2020)

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

Lestenes parish, Tukuma county, Tukuma

Date of start of the outbreak

24/07/2020

Outbreak status

Resolved (26/07/2020)

Epidemiological unit

Forest

Affected animals

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Wild boar:Sus scrofa(Suidae)		1	0	1	0

Summary of outbreaks

Total outbreaks: 7

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Wild boar:Sus scrofa(Suidae)		8	1	7	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Wild boar:Sus scrofa(Suidae)	**	**	12.50%	**

*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)	17/07/2020	Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory)	Wild boar	immunoperoxidase monolayer assay (IPMA)	22/07/2020	Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory)	Wild boar	immunoperoxidase monolayer assay (IPMA)	23/07/2020	Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory)	Wild boar	immunoperoxidase monolayer assay (IPMA)	24/07/2020	Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory)	Wild boar	real-time PCR	17/07/2020	Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory)	Wild boar	real-time PCR	21/07/2020	Positive

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted.

Map of outbreak locations