Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Lithuania
Information received on 08/01/2021 from Dr Darius Remeika, Director of the State Food and Veterinary, State Food and Veterinary Service, Ministry of Agriculture, VILNIUS, Lithuania
Summary
Report type Immediate notification
Date of start of the event 08/01/2021
Date of confirmation of the event 08/01/2021
Report date 08/01/2021
Date submitted to OIE 08/01/2021
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
New outbreaks (3)
Outbreak 1 Klaipeda, Klaipeda
Date of start of the outbreak 08/01/2021
Outbreak status Resolved (08/01/2021)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 2 2
Affected population Information about dead wild birds (mute swan, Cygnus olor) received in the framework of enhanced passive surveillance.
Outbreak 2 Klaipeda, Klaipeda
Date of start of the outbreak 08/01/2021
Outbreak status Resolved (08/01/2021)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 1 1
Affected population Information about dead wild birds (mute swan, Cygnus olor) received in the framework of enhanced passive surveillance.
Outbreak 3 Raseiniai, Kaunas
Date of start of the outbreak 08/01/2021
Outbreak status Resolved (08/01/2021)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 1 1
Affected population Information about dead wild birds (mute swan, Cygnus olor) received in the framework of enhanced passive surveillance. A wild bird was collected and delivered to the National Reference Laboratory National Food and Veterinary Risk Assessment Institute. The sequence of the HA gene in the virus was found similar to that of the highly pathogenic H5N8 virus, with the same highly pathogenic cleavage site (PLREKRRKR/GLF).
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 4 4
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
Control measures
Measures applied
  • 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 reverse transcriptase/polymerase chain reaction (RRT-PCR) 08/01/2021 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.
Map of outbreak locations