African swine fever,
South Africa
Information received on 19/05/2020 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa
Report type Follow-up report No. 16
Date of start of the event 15/04/2019
Date of confirmation of the event 17/04/2019
Report date 19/05/2020
Date submitted to OIE 19/05/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 10/12/2018
Manifestation of disease Clinical disease
Causal agent African swine fever virus
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (18/04/2019)
Follow-up report No. 1 (30/04/2019)
Follow-up report No. 2 (13/05/2019)
Follow-up report No. 3 (22/05/2019)
Follow-up report No. 4 (04/06/2019)
Follow-up report No. 5 (14/06/2019)
Follow-up report No. 6 (25/06/2019)
Follow-up report No. 7 (11/07/2019)
Follow-up report No. 8 (08/08/2019)
Follow-up report No. 9 (06/09/2019)
Follow-up report No. 10 (01/11/2019)
Follow-up report No. 11 (25/11/2019)
Follow-up report No. 12 (17/12/2019)
Follow-up report No. 13 (25/02/2020)
Follow-up report No. 14 (26/03/2020)
Follow-up report No. 15 (08/05/2020)
Follow-up report No. 16 (19/05/2020)
Follow-up report No. 17 (17/07/2020)
Follow-up report No. 18 (24/07/2020)
New outbreaks (1)
Outbreak 1 (ASF_MPU_2019_020) ASF_MPU_2019_020, Mafube, Free State
Date of start of the outbreak 13/05/2020
Outbreak status Resolved (10/06/2020)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 70 47 47 23 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 70 47 47 23 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 67.14% 67.14% 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
Epidemiological comments Outbreak outside South Africa's ASF Control Zone. Coordinates modified to protect confidentiality as required by South African Legislation.
Control measures
Measures applied
  • Traceability
  • Quarantine
  • Selective killing and disposal
  • Zoning
  • Disinfection
  • 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