Information received on 05/10/2020 from Dr Joseph R. N. Anderson, Director of Livestock/Veterinary Services, Animal Health Services, Ministry of Agriculture, Monrovia, Liberia
Report type Immediate notification
Date of start of the event 29/09/2020
Date of confirmation of the event 29/09/2020
Report date 05/10/2020
Date submitted to OIE 05/10/2020
Reason for notification First occurrence of a listed disease
Manifestation of disease Clinical disease
Causal agent B. anthracis
Nature of diagnosis Laboratory (basic)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 Fairground Community, District # 3, Buchanan City, Grand Bassa
Date of start of the outbreak 29/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Cattle 5 1 1 0 0
Affected population A very small-scale production system where the breeding stocks are purchased in Monrovia (Country Capital) from cattle traders. The cattle traders import live cattle from neighbouring countries. The cattle are raised in semi-free-range system in a residential environment of the county capital, Buchanan, Grand Bassa County. The farmer carries the animals on the field for grazing during the day and a shelter is provided at night. Additionally, there is no treatment or vaccination regimen for the animals.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Cattle 5 1 1 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Cattle 20.00% 20.00% 100.00% 20.00%
*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 A one health investigation was immediately initiated to prevent human infections. Additionally, cattle are imported for breeding from neighbouring countries and limited inspections are done due to low trained Veterinary Paraprofessionals at Entry points.
Control measures
Measures applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Traceability
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Zoning
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Screening
Diagnostic test results
Laboratory name and type Species Test Test date Result
Leon Quist Ledlum Central Veterinary Diagnostic Laboratory (National laboratory) Cattle Smears evaluation 29/09/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.