Koi herpesvirus disease,
South Africa
Information received on 13/02/2020 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa
Report type Immediate notification
Date of start of the event 03/11/2019
Date of confirmation of the event 30/11/2019
Report date 13/02/2020
Date submitted to OIE 13/02/2020
Date event resolved 30/11/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 27/01/2018
Manifestation of disease Clinical disease
Causal agent Koi herpes virus
Nature of diagnosis Clinical, Laboratory (advanced), Necropsy
This event pertains to a defined zone within the country
Related reports Immediate notification (13/02/2020)
Follow-up report No. 1 (20/10/2020)
New outbreaks (1)
Outbreak 1 (KHV_GAU_2019_001) KHV_GAU_2019_001, Mogale City, Gauteng
Date of start of the outbreak 03/11/2019
Outbreak status Resolved (30/11/2019)
Epidemiological unit River system
Water type Fresh water
Population type Wild
Production system Open
Affected animals
Species Morbidity Mortality Susceptible Cases Deaths Killed and disposed of Slaughtered
Carp (Cyprinus carpio) 2 (scale 0 to 5) 3 (scale 0 to 5) 80 80 0 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Carp (Cyprinus carpio) 80 80 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Carp (Cyprinus carpio) ** ** 100.00% **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Coordinates modified to protect confidentiality as required by South African Legislation.
Control measures
Measures applied
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations