Summary
Report type: Immediate notification
Started: 3 Dec 2021
Confirmed: 8 Dec 2021
Reported: 9 Dec 2021
Reason for notification: Recurrence
Last occurrence: 5 Jul 2021
Causal agent: Highly pathogenic avian influenza virus
Serotype: H5N1
Nature of diagnosis: Clinical, laboratory
This event pertains to a defined zone within the country.

Outbreak location 1: Ravels, Turnhout, Antwerpen, Vlaanderen
Started: 7 Dec 2021
Epidemiological unit: Farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 38 978 / 401 / 401 / 38 577 / 0 / 0
Affected population: _Gallus gallus_

Outbreak location 2: Alveringem, Veurne, West-Vlaanderen [West
Flander], Vlaanderen
Started: 3 Dec 2021
Epidemiological unit: Farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 26 460 / 1283 / 1283 / 25 177 / 0 / 0
Affected population: _Gallus gallus_

Epidemiology
Source of the outbreak(s) or origin of infection: Contact with wild
species

Control measures at event level
Domestic control measures applied: Zoning; surveillance within
containment and or the protection zone; official disposal of
carcasses, by-products and waste; official destruction of animal
products; stamping out; surveillance outside containment and or the
protection zone; traceability; disinfestation; disinfection

Diagnostic test results
Laboratory name and type / Species / Test / Test date / Result
Sciensano National Laboratory / Birds / Gene sequencing / 7-8 Dec 2021
/ Positive
Sciensano National Laboratory / Birds / Gene sequencing / 4-8 Dec 2021
/ Positive