West Nile Fever,
Portugal
Information received on 09/10/2017 from Dr Bernardo Fernando, , Direção Geral de Alimentação e Veterinária, Ministro da Agricultura, Florestas e Desenvolvimento Rural, LISBONNE, Portugal
Summary
Report type Immediate notification
Date of start of the event 04/10/2017
Date of confirmation of the event 04/10/2017
Report date 09/10/2017
Date submitted to OIE 09/10/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 14/11/2016
Manifestation of disease Clinical disease
Causal agent West Nile virus
Nature of diagnosis Clinical, Laboratory (basic)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 ALCÁCER DO SAL, ALENTEJO LITORAL, DSVR DO ALENTEJO
Date of start of the outbreak 04/10/2017
Outbreak status Resolved (04/10/2017)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Equidae 42 1 0 0 0
Affected population 19 females, 1 male, 22 foals.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Equidae 42 1 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Equidae 2.38% 0.00% 0.00% 0.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
  • Vectors
Epidemiological comments Voluntary vaccination in the affected area.
Control measures
Measures applied
  • Surveillance within containment and/or protection zone
  • Traceability
  • Quarantine
  • Control of wildlife reservoirs
  • Disinfection
  • Disinfestation
  • 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
National Institute for Agrarian and Veterinary Research (INIAV) (National laboratory) Equidae antibody detection ELISA 04/10/2017 Positive
National Institute for Agrarian and Veterinary Research (INIAV) (National laboratory) Equidae IgM-capture ELISA 04/10/2017 Positive
National Institute for Agrarian and Veterinary Research (INIAV) (National laboratory) Equidae real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 04/10/2017 Negative
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations