Rift Valley fever,
Mauritania
Information received on 06/11/2015 from Dr Mohamed Ould Baba Ould Gueya, Directeur des Services Veterinaires, Services Veterinaires, Ministere de l'Elevage, Nouakchott, Mauritania
Summary
Report type Immediate notification
Date of start of the event 29/09/2015
Date of confirmation of the event 04/11/2015
Report date 06/11/2015
Date submitted to OIE 06/11/2015
Date event resolved 08/03/2016
Reason for notification Recurrence of a listed disease
Date of previous occurrence 20/01/2014
Manifestation of disease Clinical disease
Causal agent Rift Valley fever virus
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (06/11/2015)
Follow-up report No. 1 (08/03/2016)
New outbreaks (4)
Outbreak 1 (fvr2015) Brakna, Oum Wedneine, Aleg, Aleg
Date of start of the outbreak 29/09/2015
Outbreak status Resolved (08/03/2016)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 800 5 0 5 0
Affected population Flocks of small ruminants grazing around a new pond. A strong pressure from mosquitoes of all kinds is observed.
Outbreak 2 (fvr04/2015) Moudjéria, Letfetar, Letfetar, Tidjikja
Date of start of the outbreak 06/10/2015
Outbreak status Resolved (08/03/2016)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 72 2 0 2 0
Outbreak 3 (fvr02/2015) Magta lahjar ville, Magta lahjar ville, Magta lahjar, Magta-Lahjar
Date of start of the outbreak 09/10/2015
Outbreak status Resolved (08/03/2016)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 450 4 0 4 0
Affected population Domestic animals (small ruminants) grazing around a temporary pond.
Outbreak 4 (fvr03/2015) Kiffa, Hsey bekay et Dar ould Taleb, Kiffa, Kiffa
Date of start of the outbreak 11/10/2015
Outbreak status Resolved (08/03/2016)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 700 8 0 8 0
Affected population Flocks in internal transhumance around watering points (camps).
Summary of outbreaks Total outbreaks: 4
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Sheep / goats 2022 19 0 19 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Sheep / goats 0.94% 0.00% 0.00% 0.94%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Vectors
Epidemiological comments The peculiarities of the current event are as follows: Unlike this event, previous events were characterized by massive waves of abortions and detection of virus circulation in animals (sentinel flocks) preceding the occurrence of human cases.
Control measures
Measures applied
  • Modified stamping out
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Movement control inside the country
  • Disinfection / Disinfestation
  • Traceability
  • Surveillance outside containment and/or protection zone
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Surveillance within containment and/or protection zone
  • Zoning
  • Control of vectors
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations