Brucellosis (Brucella abortus),
Information received on 10/09/2020 from Dr Letlhogile Modisa, Director, Veterinary Services, Ministry of Agriculture, Gaborone, Botswana
Report type Follow-up report No. 2
Date of start of the event 09/04/2019
Date of confirmation of the event 05/06/2019
Report date 10/09/2020
Date submitted to OIE 10/09/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 23/10/2018
Manifestation of disease Clinical disease
Causal agent Brucella abortus
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (05/06/2019)
Follow-up report No. 1 (21/11/2019)
Follow-up report No. 2 (10/09/2020)
Outbreaks There are no new outbreaks in this report
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
  • Legal movement of animals
Epidemiological comments The outbreak is still continuing. A test and slaughter policy is in place on this farm, which remains under official control. So far 196 animals have been slaughtered through the test and slaughter policy. All beef and dairy herds in the surrounding areas have continued to test negative for the disease. All animals arriving on the farm are tested to ensure they are free from Brucellosis.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Traceability
  • Quarantine
  • Slaughter
  • Ante and post-mortem inspections
  • 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
Botswana National Veterinary Laboratory (National laboratory) Cattle pathogen isolation on cell culture 01/11/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.