Low pathogenic avian influenza (poultry),
Information received on 03/06/2013 from Dr Christianne Bruschke, Chief Veterinary Officer , Agriculture, Nature and Food Quality, Ministry of Agriculture, Nature and Food Quality, The Hague, Netherlands
Report type Immediate notification
Date of start of the event 31/05/2013
Date of confirmation of the event 01/06/2013
Report date 03/06/2013
Date submitted to OIE 03/06/2013
Date event resolved 10/09/2013
Reason for notification Recurrence of a listed disease
Date of previous occurrence 25/03/2011
Manifestation of disease Clinical disease
Causal agent Low pathogenic avian influenza
Serotype H7N1
Nature of diagnosis Suspicion, Laboratory (basic)
This event pertains to a defined zone within the country
Related reports Immediate notification (03/06/2013)
Follow-up report No. 1 (27/06/2013)
Follow-up report No. 2 (10/09/2013)
New outbreaks (1)
Outbreak 1 Leusden, Utrecht
Date of start of the outbreak 31/05/2013
Outbreak status Resolved (10/09/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10750 5000 0 10750 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10750 5000 0 10750 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 46.51% 0.00% 0.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments On 1 June 2013, a 1 km protection zone has been established. In this one-km zone there are 11 other premises with poultry. Screening of these premises starts on 3 June 2013. All susceptible animals on the infected farm have been culled. Note by the OIE Animal Health Information Department: H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2012).
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Disinfection / Disinfestation
  • Stamping out
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
Central Veterinary Institute, Lelystad (National laboratory) Birds polymerase chain reaction (PCR) 01/06/2013 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations