African swine fever,
Nigeria
Information received on 23/06/2020 from Dr Olaniran Alabi, Director, Chief Veterinary Officer, Veterinary and Pest Control Services, Federal Ministry of Agriculture and Rural Development, ABUJA, Nigeria
Summary
Report type Follow-up report No. 1
Date of start of the event 26/05/2020
Date of confirmation of the event 06/06/2020
Report date 23/06/2020
Date submitted to OIE 23/06/2020
Reason for notification Unexpected change in the distribution or increase in morbidity or mortality of a listed disease
Summary description The disease is already confirmed in Three states with very high morbidity and mortality. Two other states also reported similar mortality patterns.
Manifestation of disease Clinical disease
Causal agent African swine fever virus
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (16/06/2020)
Follow-up report No. 1 (23/06/2020)
Follow-up report No. 2 (02/07/2020)
Follow-up report No. 3 (10/07/2020)
Follow-up report No. 4 (17/07/2020)
Follow-up report No. 5 (24/07/2020)
Follow-up report No. 6 (31/07/2020)
Follow-up report No. 7 (07/08/2020)
Follow-up report No. 8 (16/08/2020)
Follow-up report No. 9 (22/08/2020)
Follow-up report No. 10 (30/08/2020)
Follow-up report No. 11 (08/09/2020)
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments The outbreak started in February but with minimal fatality, but then, the number of mortalities increased drastically in May/June. The affected pig population are in a pig village, a large pig farm settlement that feeds several other pig markets within and outside the country. Update as of 23 June 2020: The disease is already confirmed in Three states with very high morbidity and mortality. Two other states also reported similar mortality patterns.
Increased Distribution
State Species
Lagos Swine
Abia Swine
Ogun Swine
Disease Impact
Increased State Species Change
Morbidity Lagos Swine 1=>5
Morbidity Abia Swine 1=>5
Morbidity Ogun Swine 1=>4
Mortality Lagos Swine 1=>5
Mortality Abia Swine 1=>5
Mortality Ogun Swine 1=>2
Control measures
Measures applied
  • Surveillance outside containment and/or protection zone
  • Traceability
  • Official disposal of carcasses, by-products and waste
  • Disinfection
  • Ante and post-mortem inspections
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Movement control inside the country
  • Quarantine
Diagnostic test results
Laboratory name and type Species Test Test date Result
National Veterinary Research Institute (Regional Reference Laboratory) Swine polymerase chain reaction (PCR) 06/06/2020 Positive
National Veterinary Research Institute (Regional Reference Laboratory) Swine polymerase chain reaction (PCR) 18/06/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.