Infectious haematopoietic necrosis,
Former Yug. Rep. of Macedonia
Information received on 10/08/2018 from Dr Zoran Atasanov, Director Food and Veterinary Agency, Food and Veterinary Agency, Ministry of Agriculture, Forestry and Water Economy Former Yug. Rep. Of Macedonia, SKOPJE, Former Yug. Rep. of Macedonia
Report type Immediate notification
Date of start of the event 18/06/2018
Date of confirmation of the event 18/06/2018
Report date 10/08/2018
Date submitted to OIE 10/08/2018
Date event resolved 03/12/2018
Reason for notification Recurrence of a listed disease
Date of previous occurrence 02/05/2018
Manifestation of disease Clinical disease
Causal agent Infectious haematopoietic necrosis virus
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (10/08/2018)
Follow-up report No. 1 (21/08/2018)
Follow-up report No. 2 (31/01/2019)
New outbreaks (1)
Outbreak 1 Mrezichko, Mrezichko, Kavadarci, Kavadarci
Date of start of the outbreak 18/06/2018
Outbreak status Resolved (03/12/2018)
Epidemiological unit Farm
Water type Fresh water
Population type Farmed
Production system Semi-closed
Affected animals
Species Morbidity Mortality Susceptible Cases Deaths Killed and disposed of Slaughtered
Rainbow trout (Oncorhynchus mykiss) (kg) 40 % 40 % 10000 4000 4000 2512 3488
Affected population Samples were taken from the pool in the frame of the screening activities.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rainbow trout (Oncorhynchus mykiss) (kg) 10000 4000 4000 2512 3488
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Rainbow trout (Oncorhynchus mykiss) (kg) 40.00% 40.00% 100.00% 100.00%
*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
  • Movement control inside the country
  • Surveillance outside infected and/or protection zone
  • Surveillance within infected and/or protection zone
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Zoning
  • Disinfection
  • Process to inactivate the pathogenic agent in products or by-products
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Screening
Diagnostic test results
Laboratory name and type Species Test Test date Result
Institute of Veterinary medicine of Serbia - Belgrade (Foreign laboratory) Rainbow trout (Oncorhynchus mykiss) virus isolation 18/06/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations