West Nile Fever,
Croatia
Information received on 12/09/2018 from Dr Damir Tudan, Assistant Minister, Chief Veterinary Officer, Veterinary and Food Safety Directorate, Ministry of Agriculture, Zagreb, Croatia
Summary
Report type Immediate notification
Date of start of the event 31/08/2018
Date of confirmation of the event 11/09/2018
Report date 12/09/2018
Date submitted to OIE 12/09/2018
Reason for notification Recurrence of a listed disease
Date of previous occurrence 12/2017
Manifestation of disease Clinical disease
Causal agent West Nile fever virus
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (12/09/2018)
Follow-up report No. 1 (14/09/2018)
New outbreaks (1)
Outbreak 1 Klis Kosa, Klis Kosa, Klis, Splitsko-Dalmatinska
Date of start of the outbreak 31/08/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Eurasian Blackbird:Turdus merula(Turdidae) 40 0 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Eurasian Blackbird:Turdus merula(Turdidae) ** 40 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Eurasian Blackbird:Turdus merula(Turdidae) ** ** ** **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Unusual mortality was observed in the past twenty days; approx. 30 to 50 birds died. Dead birds were sent to the National Reference Laboratory for testing. West Nile fever was confirmed in one sample using real-time PCR.
Control measures
Measures applied
  • 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
Croatian Veterinary Institute (National laboratory) Eurasian Blackbird real-time PCR 11/09/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations