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2022-8-19 0:49:08


OIE: Highly pathogenic influenza A viruses (infection with H5N8) (non-poultry including wild birds), Lithuania
submited by kickingbird at Feb, 15, 2021 22:50 PM from OIE

Information received on 14/02/2021 from Dr Darius Remeika, Director of the State Food and Veterinary, State Food and Veterinary Service, Ministry of Agriculture, VILNIUS, Lithuania
Summary
Report type
Follow-up report No. 1
Date of start of the event
08/01/2021
Date of confirmation of the event
08/01/2021
Report date
14/02/2021
Date submitted to OIE
14/02/2021
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
07/04/2017
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic influenza A virus
Serotype
H5N8
Nature of diagnosis
Laboratory (advanced)
This event pertains to
a defined zone within the country
Related reports
Immediate notification (08/01/2021)
Follow-up report No. 1 (14/02/2021)
New outbreaks (1)

Outbreak 1
Kedainiai, Kaunas
Date of start of the outbreak
03/02/2021
Outbreak status
Resolved (11/02/2021)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

1
1


Affected population
The information about the dead wild bird was received in the framework of enhanced passive surveillance.
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Mute Swan:Cygnus olor(Anatidae)

1
1


Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Mute Swan:Cygnus olor(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
Epidemiological comments
The information about the dead wild bird was received in the framework of enhanced passive surveillance. The wild bird was collected and delivered to the National Reference Laboratory – National Food and Veterinary Risk Assessment Institute. On 11 February, the mute swan was found positive to avian influenza type A. The sequence of the HA gene in the virus, which was found in the wild bird, was similar to that of the highly pathogenic H5N8 virus, with the same highly pathogenic cleavage site (PLREKRRKR/GLF).

Control measures
Measures applied
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
National Food and Veterinary Risk Assessment Institute (Regional Reference Laboratory)
Mute Swan
real-time PCR
11/02/2021
Positive
National Food and Veterinary Risk Assessment Institute (Regional Reference Laboratory)
Mute Swan
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
08/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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