Persistence of the historical lineage I of West Africa against the ongoing spread of the Asian lineage of peste des petits ruminants virus

Tounkara Kalidia, Kwiatek Olivier, Sidibé Cheick Abou Kounta, Sery Amadou, Dakouo Martin, Salami Habib, Lo Modou Moustapha, Ba Aminata, Diop Mariame, Niang Mamadou, Libeau Geneviève, Bataille Arnaud. 2021. Persistence of the historical lineage I of West Africa against the ongoing spread of the Asian lineage of peste des petits ruminants virus. Transboundary and Emerging Diseases, 7 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Abstract : Peste des petits ruminants (PPR) is a highly contagious disease of small ruminants. The causal agent, PPR virus (PPRV), is classified into four genetically distinct lineages. Lineage IV, originally from Asia, has shown a unique capacity to spread across Asia, the Middle East and Africa. Recent studies have reported its presence in two West African countries: Nigeria and Niger. Animals are frequently exchanged between Mali and Niger, which could allow the virus to enter and progress in Mali and to other West African countries. Here, PPRV samples were collected from sick goats between 2014 and 2017 in both Mali and in Senegal, on the border with Mali. Partial PPRV nucleoprotein gene was sequenced to identify the genetic lineage of the strains. Our results showed that lineage IV was present in south‐eastern Mali in 2017. This is currently the furthest West the lineage has been detected in West Africa. Surprisingly, we identified the persistence at least until 2014 of the supposedly extinct lineage I in two regions of Mali, Segou and Sikasso. Most PPRV sequences obtained in this study belonged to lineage II, which is dominant in West Africa. Phylogenetic analyses showed a close relationship between sequences obtained at the border between Senegal and Mali, supporting the hypothesis of an important movement of the virus between the two countries. Understanding the movement of animals between these countries, where the livestock trade is not fully controlled, is very important in the design of efficient control strategies to combat this devastating disease.

Mots-clés Agrovoc : Contrôle de maladies, Peste des petits ruminants, Virus peste petits ruminants, Épidémiologie, Transmission des maladies, Migration animale, Lignée, Maladie transfrontière

Mots-clés géographiques Agrovoc : Afrique occidentale, Nigéria, Niger, Mali, Sénégal

Mots-clés libres : Disease control, Molecular epidemiology, Morbillivirus, Phylogeny, Small ruminant, Transboundary

Classification Agris : L73 - Animal diseases
L20 - Animal ecology

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Agence(s) de financement européenne(s) : European Commission

Auteurs et affiliations

  • Tounkara Kalidia, LCV (MLI)
  • Kwiatek Olivier, CIRAD-BIOS-UMR ASTRE (FRA)
  • Sidibé Cheick Abou Kounta, LCV (MLI)
  • Sery Amadou, LCV (MLI)
  • Dakouo Martin, LCV (MLI)
  • Salami Habib, LNERV (SEN)
  • Lo Modou Moustapha, LNERV (SEN)
  • Ba Aminata, LNERV (SEN)
  • Diop Mariame, LNERV (SEN)
  • Niang Mamadou, LCV (MLI)
  • Libeau Geneviève, CIRAD-BIOS-UMR ASTRE (FRA)
  • Bataille Arnaud, CIRAD-BIOS-UMR ASTRE (FRA) - auteur correspondant

Source : Cirad-Agritrop (

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