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Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Lithuania
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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
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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 |
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| 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) |
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2 |
2 |
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| Affected population |
Information about dead wild birds (mute swan, Cygnus olor) received in the framework of enhanced passive surveillance. |
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| 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) |
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1 |
1 |
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| Affected population |
Information about dead wild birds (mute swan, Cygnus olor) received in the framework of enhanced passive surveillance. |
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| 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) |
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1 |
1 |
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| 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). |
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| Summary of outbreaks |
Total outbreaks: 3 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Mute Swan:Cygnus olor(Anatidae) |
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4 |
4 |
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| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Mute Swan:Cygnus olor(Anatidae) |
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100.00% |
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| *Removed from the susceptible population through death, destruction and/or slaughter |
| **Not calculated because of missing information |
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Epidemiology
| Source of the outbreak(s) or origin of infection |
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Control measures
| Measures applied |
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Vaccination prohibited
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No treatment of affected animals
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| Measures to be applied |
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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 |
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Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |
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Map of outbreak locations
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