West Nile Fever,
Information received on 26/08/2020 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 12/08/2020
Date of confirmation of the event 26/08/2020
Report date 26/08/2020
Date submitted to OIE 26/08/2020
Date event resolved 16/10/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 01/12/2019
Manifestation of disease Clinical disease
Causal agent West Nile virus
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (26/08/2020)
Follow-up report No. 1 (24/09/2020)
Follow-up report No. 2 (14/10/2020)
Follow-up report No. 3 (06/01/2021)
New outbreaks (1)
Outbreak 1 (2020-01) PORTO VECCHIO, PORTO VECCHIO, Corse-Du-Sud
Date of start of the outbreak 12/08/2020
Outbreak status Resolved (26/08/2020)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Equidae 19 1 0 0 0
Affected population Clinical symptoms on a horse (neurological disorders). No movement of this equidae during the past months.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Equidae 19 1 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Equidae 5.26% 0.00% 0.00% 0.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Control of vectors
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
Anses – Animal health laboratory, Maisons-alfort (National laboratory) Equidae IgM-capture ELISA 26/08/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations