West Nile Fever,
Portugal
Information received on 02/09/2016 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 24/08/2016
Date of confirmation of the event 30/08/2016
Report date 02/09/2016
Date submitted to OIE 02/09/2016
Date event resolved 14/11/2016
Reason for notification Recurrence of a listed disease
Date of previous occurrence 31/12/2015
Manifestation of disease Clinical disease
Causal agent West Nile virus
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (02/09/2016)
Follow-up report No. 1 (07/12/2016)
New outbreaks (1)
Outbreak 1 (WNF001/2016) LOULÉ-SC01, FARO, Dsvr Do Algarve
Date of start of the outbreak 24/08/2016
Outbreak status Resolved (30/10/2016)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Equidae 2 1 0 0 0
Affected population Two working horses kept in a backyard-like facility. One of the horses showed clinical symptoms and was found positive for West Nile virus antibodies.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Equidae 2 1 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Equidae 50.00% 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
  • Disinfection / Disinfestation
  • Dipping / Spraying for control of vectors or parasites
  • Quarantine
  • Surveillance within containment and/or protection zone
  • Zoning
  • Control of vectors
  • Vaccination permitted (if a vaccine exists)
  • Treatment of affected animals ( Symptomatic treatment)
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 30/08/2016 Positive
National Institute for Agrarian and Veterinary Research (INIAV) (National laboratory) Equidae IgM-capture ELISA 30/08/2016 Positive
National Institute for Agrarian and Veterinary Research (INIAV) (National laboratory) Equidae real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 30/08/2016 Negative
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations