West Nile Fever,
Information received on 27/08/2019 from Dr Dietrich Rassow, Director for Animal Health and Animal Welfare, Chief Veterinary Officer, Directorate of Animal Health and Animal Welfare, Federal Ministry of Food and Agriculture, Berlin, Germany
Report type Immediate notification
Date of start of the event 20/08/2019
Date of confirmation of the event 20/08/2019
Report date 27/08/2019
Date submitted to OIE 27/08/2019
Date event resolved 15/07/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 11/01/2019
Manifestation of disease Clinical disease
Causal agent West Nile virus
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (27/08/2019)
Follow-up report No. 1 (13/09/2019)
Follow-up report No. 2 (18/09/2019)
Follow-up report No. 3 (25/09/2019)
Follow-up report No. 4 (16/10/2019)
Follow-up report No. 5 (17/01/2020)
Follow-up report No. 6 (17/07/2020)
New outbreaks (1)
Outbreak 1 (19-416-00006) Berlin, Berlin, Stadt, Berlin
Date of start of the outbreak 20/08/2019
Outbreak status Resolved (20/09/2019)
Epidemiological unit Zoo
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Snowy Owl:Bubo scandiacus(Strigidae) 114 12 12 0 0
Affected population 2 owls, 1 dug, 2 gulls, 1 grey heron
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Snowy Owl:Bubo scandiacus(Strigidae) 114 12 12 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Snowy Owl:Bubo scandiacus(Strigidae) 10.53% 10.53% 100.00% 10.53%
*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
  • Vector surveillance
  • Control of vectors
  • Control of wildlife reservoirs
  • Official disposal of carcasses, by-products and waste
  • Traceability
  • Surveillance within containment and/or protection zone
  • 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
Friedrich-Loeffler Institute (National laboratory) Snowy Owl reverse transcription - polymerase chain reaction (RT-PCR) 20/08/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations