Highly pathogenic avian influenza,
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
Report type Immediate notification
Date of start of the event 31/12/2020
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 avian influenza virus
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 Kaunas, Kaunas
Date of start of the outbreak 31/12/2020
Outbreak status Resolved (08/01/2021)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 27 22 22 5 0
Affected population In a backyard with eight hens, nine turkeys, seven geese and three ducks, due to increased mortality three dead hens and one dead turkey were taken in the framework of the passive surveillance.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 27 22 22 5 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 81.48% 81.48% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Contact with wild species
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Screening
  • Stamping out
  • Control of wildlife reservoirs
  • Disinfection
  • 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) Birds 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