Information received on 15/02/2021 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. 1
Date of start of the event
09/02/2021
Date of confirmation of the event
09/02/2021
Report date
15/02/2021
Date submitted to OIE
15/02/2021
Reason for notification
First occurrence of a listed disease in the country
Causal agent
Highly pathogenic influenza A virus
Serotype
H5N8
Nature of diagnosis
Laboratory (basic), Laboratory (advanced)
This event pertains to
the whole country
Related reports
Immediate notification (10/02/2021)
Follow-up report No. 1 (15/02/2021)
New outbreaks (3)

Outbreak 1
Jurmala town, J?rmala
Date of start of the outbreak
12/02/2021
Outbreak status
Resolved (13/02/2021)
Epidemiological unit
Not applicable
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

2
2
0
0
Outbreak 2
Jurmala town, J?rmala
Date of start of the outbreak
12/02/2021
Outbreak status
Resolved (13/02/2021)
Epidemiological unit
Not applicable
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

1
1
0
0
Outbreak 3
Jurmala town, J?rmala
Date of start of the outbreak
12/02/2021
Outbreak status
Resolved (13/02/2021)
Epidemiological unit
Not applicable
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Eurasian Wigeon:Anas penelope(Anatidae)

1
1
0
0
Summary of outbreaks
Total outbreaks: 3
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

3
3
0
0
Eurasian Wigeon:Anas penelope(Anatidae)

1
1
0
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Mute Swan:Cygnus olor(Anatidae)
**
**
100.00%
**
Eurasian Wigeon:Anas penelope(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
Official disposal of carcasses, by-products and waste
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
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory)
Eurasian Wigeon
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
12/02/2021
Positive
Institute of Food Safety, Animal Health and Environment, BIOR (National laboratory)
Mute Swan
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
12/02/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.