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2022-8-16 8:50:15

OIE: Highly pathogenic influenza A viruses (infection with H5N1) (non-poultry including wild birds), Latvia
submited by kickingbird at Jun, 8, 2021 11:9 AM from OIE

Report type: immediate notification
Started: 2 Jun 2021
Confirmed: 2 Jun 2021
Reported: 7 Jun 2021
Reason for notification: new strain in the country
Causal agent: Highly pathogenic avian influenza virus
Serotype: H5N1
Nature of diagnosis: clinical, necropsy, laboratory
This event pertains to the whole country.

New outbreaks (1)
Summary of outbreaks
Total outbreaks (1)
Outbreak location 1: Rojas County, Rojas
Started: 2 Jun 2021
Ended: 3 Jun 2021
Epidemiological unit: not applicable
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Herring Gull (_Larus argentatus_): Laridae-Charadriiformes:
Anatidae-Anseriformes / - / 1 / 1 / 0 / 0 / 0
Affected population: Within the framework of enhanced passive
surveillance one Herring gull (_Larus argentatus_) was tested positive
by RT-PCR for Avian Influenza and HPAI H5N1 has been confirmed.

Source of the outbreak(s) or origin of infection: unknown or

Epidemiological comments: Within the framework of enhanced passive
surveillance, one herring gull (_Larus argentatus_) was found dead and
sent for testing to the National Reference laboratory. Wild bird was
tested positive by RT-PCR for Avian Influenza and HPAI H5N1 has been

Control measures at the event level
Wild control measures applied: official disposal of carcasses, by
products and waste; control of wildlife reservoirs.

Diagnostic test results
Laboratory name and type: Institute of Food Safety, Animal Health and
Environment, BIOR (National Laboratory)
Species / Outbreaks / Test / Test date / Result
Herring Gull / reverse transcription-polymerase chain reaction
(RT-PCR) / 1 / 2 Jun 2021 / positive
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