Infectious salmon anaemia virus (HPR-deleted or HPR0 genotypes) (Infection with) ,
Norway
Information received on 13/07/2017 from Dre Kristina Landsverk, Chief Veterinary Officer, Norwegian Food Safety Authority, Ministry of Agriculture and Food, Brumunddal, Norway
Summary
Report type Immediate notification
Date of start of the event 07/07/2017
Date of confirmation of the event 12/07/2017
Report date 13/07/2017
Date submitted to OIE 13/07/2017
Reason for notification First occurrence of a listed disease
Manifestation of disease Clinical disease
Causal agent Infectious salmon anaemia virus (ISAV)
Serotype HPR-deleted
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (13/07/2017)
Follow-up report No. 1 (26/07/2017)
Follow-up report No. 2 (26/07/2017)
New outbreaks (1)
Outbreak 1 (2017-1) 18000 Rimstad, Tingvoll, MORE OG ROMSDAL
Date of start of the outbreak 07/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Water type Fresh water
Population type Farmed
Production system Closed
Affected animals
Species Morbidity Mortality Susceptible Cases Deaths Killed and disposed of Slaughtered
Salmon (Salmo salar) 0.3 % 0.3 % 3600 100 100 3500 0
Affected population Land based brood stock farm.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Salmon (Salmo salar) 3600 100 100 3500 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Salmon (Salmo salar) 2.78% 2.78% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Movement control inside the country
  • Official destruction of animal products
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Surveillance outside infected and/or protection zone
  • Surveillance within infected and/or protection zone
  • Traceability
  • Official disposal of carcasses, by-products and waste
  • Zoning
  • Disinfection
Diagnostic test results
Laboratory name and type Species Test Test date Result
Norwegian Veterinary Institute (Regional Reference Laboratory) Salmon (Salmo salar) histopathological examination 12/07/2017 Positive
Norwegian Veterinary Institute (Regional Reference Laboratory) Salmon (Salmo salar) immunohistochemical test 12/07/2017 Positive
Norwegian Veterinary Institute (Regional Reference Laboratory) Salmon (Salmo salar) real-time PCR 12/07/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations