Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Switzerland
Information received on 29/12/2017 from Mr Hans Wyss, Chief Veterinary Officer, Schwarzenburgstrasse 161, Swiss Federal Veterinary Office, LIEBEFELD BERNE, Switzerland
Summary
Report type Immediate notification
Date of start of the event 18/12/2017
Date of confirmation of the event 22/12/2017
Report date 29/12/2017
Date submitted to OIE 29/12/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 22/03/2017
Manifestation of disease Clinical disease
Causal agent Highly pathogenic influenza A virus
Serotype H5N6
Nature of diagnosis Laboratory (basic), Laboratory (advanced), Necropsy
This event pertains to the whole country
New outbreaks (1)
Outbreak 1 (HPAI_2017_2) Bielersee, Erlach, Seeland, BERN
Date of start of the outbreak 18/12/2017
Outbreak status Resolved (29/12/2017)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 1 1 0 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mute Swan:Cygnus olor(Anatidae) 1 1 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Mute Swan:Cygnus olor(Anatidae) ** ** 100.00% **
*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 This is the first detection of the subtype H5N6 in Switzerland. Samples were sent to the Friedrich-Loeffler Institute (FLI), Germany, for further analysis. First preliminary results suggest a relation to the HPAI virus H5N8/H5N6 strains recently detected in Europe.
Control measures
Measures applied
  • Surveillance within containment and/or protection zone
  • Vaccination prohibited
  • 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 Reference Centre for Diseases of Poultry and Rabbits (NRGK) (National laboratory) Mute Swan reverse transcription - polymerase chain reaction (RT-PCR) 22/12/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations