African swine fever,
Namibia
Information received on 11/05/2020 from Dr Albertina Shilongo, Acting Chief Veterinary Officer, ivision of Epidemiology, Import/Export Control and Training, Ministry of Agriculture, Water and Forestry, Windhoek, Namibia
Summary
Report type Immediate notification
Date of start of the event 28/04/2020
Date of confirmation of the event 30/04/2020
Report date 11/05/2020
Date submitted to OIE 11/05/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 30/06/2019
Manifestation of disease Clinical disease
Causal agent African swine fever virus
Nature of diagnosis Clinical, Laboratory (advanced), Necropsy
This event pertains to a defined zone within the country
New outbreaks (20)
Outbreak cluster 1 Outapi, Outapi, Outapi, Omusati (19 outbreaks)
Date of start of the outbreak 28/04/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 195 38 23 15 0
Outbreak 2 Excelsior, Outjo, Outjo, Kunene
Date of start of the outbreak 05/05/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 15 8 8 7
Summary of outbreaks Total outbreaks: 20
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 210 46 31 22 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 21.90% 14.76% 67.39% **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
  • Vectors
Epidemiological comments Domesticated pigs showing clinical signs of diarrhoea,vomiting and innapetance, followed by sudden death with petechia and ecchimosis lesions of the skin.
Control measures
Measures applied
  • Control of vectors
  • Disinfection
  • Selective killing and disposal
  • Surveillance within containment and/or protection zone
  • 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
Central Veterinary Laboratory (CVL) (National laboratory) Swine polymerase chain reaction (PCR) 30/04/2020 Positive
Central Veterinary Laboratory (CVL) (National laboratory) Swine polymerase chain reaction (PCR) 08/05/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations