Rift Valley fever,
Libya
Information received on 27/02/2020 from Dr Zakaria Mohamed Mustafa Elkhatal, Director General, National Centre for Animal Health (NCAH), Ministry of Agriculture, Animal & Marine Wealth, Tripoli, Libya
Summary
Report type Follow-up report No. 3
Date of start of the event 12/12/2019
Date of confirmation of the event 13/01/2020
Report date 27/02/2020
Date submitted to OIE 27/02/2020
Reason for notification First occurrence of a listed disease in the country
Causal agent Rift Valley fever virus
Nature of diagnosis Clinical, Laboratory (basic)
This event pertains to the whole country
Related reports Immediate notification (15/01/2020)
Follow-up report No. 1 (03/02/2020)
Follow-up report No. 2 (13/02/2020)
Follow-up report No. 3 (27/02/2020)
Follow-up report No. 4 (09/05/2020)
Follow-up report No. 5 (24/06/2020)
Follow-up report No. 6 (18/07/2020)
New outbreaks (2)
Outbreak 1 South, Wade ashati, Brak ashati, Ash Shati'
Date of start of the outbreak 15/02/2020
Outbreak status Resolved (14/04/2020)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 70 3 0 0 0
Outbreak 2 South, Eddes, Elgrafa, Awbari
Date of start of the outbreak 17/02/2020
Outbreak status Resolved (14/04/2020)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 130 1 0 0 0
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 200 4 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Sheep / goats 2.00% 0.00% 0.00% 0.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Illegal movement of animals
  • Vectors
Epidemiological comments To complete the project (SORO.LIB 801.CHA) about Rift Valley fever in Libya, sample collection (from sheep and goats) from the Southern area was completed by the surveillance team. The total number of samples is 426. The following signs were reported by the surveillance team: abortion in all stages of gestation, new-born deaths after respiratory manifestation and diarrhoea in some cases. The signs appeared in goats that were involved in illegal movement.
Control measures
Measures applied
  • Movement control inside the country
  • Traceability
  • Quarantine
  • Disinfection
  • Control of vectors
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Vector surveillance
  • Ante and post-mortem inspections
Diagnostic test results
Laboratory name and type Species Test Test date Result
Central Veterinary Laboratory (National laboratory) Sheep / goats IgM-capture ELISA 26/02/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations