Koi herpesvirus disease,
Information received on 03/12/2018 from Dr Silvio Borrello, Chief Veterinary Officer, Food Safety and Collegial Bodies for Health Protection, Ministère de la Santé, Department for Veterinary Public Health, Rome, Italy
Report type Immediate notification
Date of start of the event 30/08/2018
Date of confirmation of the event 24/10/2018
Report date 03/12/2018
Date submitted to OIE 03/12/2018
Date event resolved 10/04/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 22/12/2017
Manifestation of disease Clinical disease
Causal agent Koi herpesvirus
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (03/12/2018)
Follow-up report No. 1 (10/04/2019)
New outbreaks (1)
Outbreak 1 (KOI_TO_2018_1) Cumiana, TORINO, Piemonte
Date of start of the outbreak 30/08/2018
Outbreak status Resolved (10/04/2019)
Epidemiological unit Farm
Water type Fresh water
Population type Wild
Production system Semi-closed
Affected animals
Species Morbidity Mortality Susceptible Cases Deaths Killed and disposed of Slaughtered
Carp (Cyprinus carpio) 3.2 % 3.2 % 320 10 10 310 0
Affected population Clinical symptoms appeared on August 30 in a pond which is not connected with any stream and is used only for recreational purposes.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Carp (Cyprinus carpio) 320 10 10 310 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Carp (Cyprinus carpio) 3.13% 3.13% 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
  • 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
Experimental Zooprophylactic Institute (IZS), Padova (National laboratory) Carp (Cyprinus carpio) nested RT-PCR 24/10/2018 Positive
Experimental Zooprophylactic Institute (IZS), Padova (National laboratory) Carp (Cyprinus carpio) real-time PCR 24/10/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations