Highly pathogenic avian influenza,
Belgium
Information received on 27/11/2020 from Dr Herman Claeys, Chef du Service Politique sanitaire : Animaux et Végétaux, Directorat-général Animaux, Végétaux et Alimentation, Service Public Fédéral Santé publique, sécurité de la chaîne alimentaire et environnement, Bruxelles, Belgium
Summary
Report type Immediate notification
Date of start of the event 18/11/2020
Date of confirmation of the event 25/11/2020
Report date 27/11/2020
Date submitted to OIE 27/11/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 21/06/2017
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N5
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 Menen, West-Vlaanderen
Date of start of the outbreak 18/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 151600 600 151000 0
Affected population Poultry farm (broilers)
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 151600 ** 600 151000 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 0.40% ** 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Traceability
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Disinfection
Diagnostic test results
Laboratory name and type Species Test Test date Result
Sciensano (National laboratory) Birds nucleotide sequencing 25/11/2020 Positive
Sciensano (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 25/11/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations