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, Norwegian Food Safety Authority, 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
Date event resolved 03/11/2017
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 (27/07/2017)
Follow-up report No. 3 (14/12/2017)
New outbreaks (1)
Outbreak 1 (2017-1) 18000 Rimstad, Tingvoll, More Og Romsdal
Date of start of the outbreak 07/07/2017
Outbreak status Resolved (03/11/2017)
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