Low pathogenic avian influenza (poultry),
Information received on 09/10/2019 from Dr Loic Evain, Directeur Général adjoint, CVO, Direction générale de l'alimentation, Ministère de l'Agriculture et de l'Alimentation, Paris, France
Report type Immediate notification
Date of start of the event 03/10/2019
Date of confirmation of the event 03/10/2019
Report date 09/10/2019
Date submitted to OIE 09/10/2019
Date event resolved 03/12/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 07/2018
Manifestation of disease Sub-clinical infection
Causal agent Low pathogenic avian influenza virus
Serotype H5
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (09/10/2019)
Follow-up report No. 1 (06/12/2019)
Follow-up report No. 2 (06/04/2020)
New outbreaks (1)
Outbreak 1 Marolle en Sologne, Marolle en Sologne, Loir-Et-Cher
Date of start of the outbreak 03/10/2019
Outbreak status Resolved (03/12/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2600 0 2600 0
Affected population Farm with mallards with four different batches: ducks ready to be released, breeders to be culled and two batches of future breeders. Cleaning and disinfection of aviaries.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2600 ** 0 2600 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 0.00% ** 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Free-ranging farm with mallards intended for hunting in a natural environment. The virus was detected as part of the official planned surveillance without any clinical signs. Neuraminidase could not be determined during confirmation.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance within containment and/or protection zone
  • Traceability
  • Zoning
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Stamping out
  • Disinfection
Diagnostic test results
Laboratory name and type Species Test Test date Result
ANSES - Niort-Ploufragan-Plouzané Laboratory - Ploufragan Site (Regional Reference Laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 03/10/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations