A study on African animal trypanosomosis in four areas of Senegal

Ravel Sophie, Mediannikov Oleg, Bossard Géraldine, Desquesnes Marc, Cuny Gérard, Davoust Bernard. 2015. A study on African animal trypanosomosis in four areas of Senegal. Folia Parasitologica, 62:044, 6 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q3, Sujet : PARASITOLOGY

Abstract : In Senegal, several areas provide great potential for agriculture and animal production, but African animal trypanosomosis (AAT) is one of the major constraints to the development of more effective livestock production systems. A study was conducted to assess the current situation of AAT in this country. Surveys were carried out between June 2011 and September 2012 in four different areas: Dakar, Sine Saloum, Kedougou region and Basse Casamance in several animal species: dogs (152), donkeys (23), horses (63), sheep (43), goats (52) and cattle (104), distributed in the four sites. Molecular tools (PCR) indicated 3.4% positive animals including dogs, donkeys, a goat and cattle. The savannah type of Trypanosoma congolense Broden, 1904 (53% of positive cases) and the forest type of T. congolense (subgenus Nannomonas Hoare, 1964) were predominant. Trypanosoma vivax Ziemann, 1905 (subgenus Duttonella Chalmers, 1918) was only present in one animal and no trypanosome of the subgenus Trypanozoon Lühe, 1906 was found. Half of the positive cases were detected in Sine Saloum, where T. congolense savannah-type was predominant, and the other half in Basse Casamance, where T. congolense forest-type was predominant; no cases were found in Dakar or in the Kedougou region. A high risk of infection in dogs with T. congolense savannah-type was shown in Sine Saloum, requiring prevention and control of dogs in this area. The involvement of tsetse flies in the transmission of T. congolense in Sine Saloum and Basse Casamance is discussed.

Mots-clés Agrovoc : Trypanosoma congolense, Enquête pathologique, Évaluation du risque, Épidémiologie, Âne, Bos taurus, Caprin, Ovin, Cheval, Chien, Glossina, Vecteur de maladie, Transmission des maladies

Mots-clés géographiques Agrovoc : Sénégal

Mots-clés géographiques complémentaires : Basse Casamance, Siné Saloum

Classification Agris : L73 - Animal diseases
L72 - Pests of animals

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

  • Ravel Sophie, IRD (FRA)
  • Mediannikov Oleg, IRD (SEN)
  • Bossard Géraldine, CIRAD-BIOS-UMR INTERTRYP (FRA)
  • Desquesnes Marc, CIRAD-BIOS-UMR INTERTRYP (THA) ORCID: 0000-0002-7665-2422
  • Cuny Gérard, IRD (FRA)
  • Davoust Bernard, Université Aix-Marseille (FRA)

Source : Cirad-Agritrop (

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