General information
Report type: Follow up report 1
Started: 30 Sep 2024
Confirmed: 4 Oct 2024
Reported: 14 Oct 2024
Reason for notification: Recurrence of an eradicated disease
Date of last occurrence: 25 May 2024
End date: -
Disease: Influenza A viruses of high pathogenicity (Inf. with)
(non-poultry including wild birds) (2017-)
Causal agent: Highly pathogenic avian influenza virus
Nature of diagnosis: Clinical, laboratory
Genotype/serotype/subtype: H5N1
Event status: On-going
This event pertains to the country/territory.

Quantitative data summary
Location: Hokkaido, Japan
Start date: 30 Sep 2024
End date: -
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Peregrine falcon (wild) / - / 1 / 1 / - / - / -

Source of event or origin of infection: Unknown or inconclusive
Epidemiological comments: The HPAI virus recently detected in a
deceased peregrine falcon in Hokkaido, Japan, was confirmed to be H5N1
subtype.

Control measures at event level
Domestic animals, applied: Surveillance within the restricted zone
Wild animals, applied: Surveillance within the restricted zone,
official disposal of carcasses, by-products and waste, disinfection,
surveillance outside the restricted zone

Diagnostic test results
Test name / Laboratory / Species sampled / Number of outbreaks sampled
/ First result date / Latest result date / Result
Gene sequencing / Laboratory designated by Ministry of the Environment
/ Peregrine falcon / 1 / 8 Oct 2024 / 8 Oct 2024 / Positive
Real-time reverse transcription polymerase chain reaction (rRT-PCR) /
Laboratory designated by Ministry of the Environment / Peregrine
falcon / 4 Oct 2024 / 4 Oct 2024 / Positive