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2021-9-23 6:48:19


OIE: Highly pathogenic avian influenza (H5N8), Viet Nam
submited by kickingbird at Jul, 6, 2021 9:12 AM from OIE

General information
Report type: immediate notification
Date of start of the event: 3 Jun 2021
Date of confirmation of the event: 8 Jun 2021
Reason for notification: new strain in the country
Manifestation of disease: clinical disease
Causal agent: highly pathogenic avian influenza virus
Serotype: H5N8
Nature of diagnosis: clinical, laboratory
This event pertains to a defined zone within the country.

New outbreaks (3)
Summary of outbreaks
Total outbreaks: 3
Outbreak location 1: Huu Loi, Yen Thuy, Hoa Binh
Date of start of the outbreak: 3 Jun 2021
Epidemiological unit: Backyard
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 5180 / 2000 / 1180/ 4000 / - / -

Outbreak location 2: Ngoc Xuan, Cao Bang, Cao Bang
Date of start of the outbreak: 6 Jun 2021
Epidemiological unit: Village
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 175 / 100 / 20 / 155 / - / -

Outbreak location 3: Vu Oai, Hoanh Bo, Quang Ninh
Date of start of the outbreak: 28 Jun 2021
Epidemiological unit: Village
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 2000 / 1000 / 200 / 1800 / - / -

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

Control measures at event level
Domestic control measures applied: disinfection; movement control
inside the country; stamping out; vaccination in response to the
outbreaks 

Domestic control measures to be applied: surveillance outside
containment and/or protection zone

Diagnostic test results
Laboratory name and type / Species / Outbreaks / Test / Test date /
Result
National Center for Veterinary Diagnosis (NCVD) (National Laboratory)
/ birds / 3 / Real-time reverse transcription polymerase chain
reaction (rRT-PCR) / 8 Jun 2021 / positive
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