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
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
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 Continuing (or date resolved not provided)
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