Volume 79, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


is the main vector of dengue viruses. The epidemiology of dengue fever remains poorly understood in Senegal. A sylvatic transmission seems to predominate. However, despite the sylvatic circulation of the dengue virus and the presence of vectors in urban areas, only sporadic cases have been reported. is a polytypic species. In Senegal, a purely sylvatic form is found in the forest gallery areas and a domestic form is found in the villages in savannah and sahelian areas and in urban areas. Using allozymes, we analyzed the genetic diversity and the genetic structure of populations differing in their ecological characteristics. Populations from Senegal were significantly structured but with a low level of genetic differentiation. from the “domestic” populations show a decreased genetic diversity and a lower genetic differentiation compared with “sylvatic” populations. These findings suggest that environmental conditions, ecological factors, and human activities may impact the genetic structure of populations in Senegal.


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  • Received : 12 Nov 2007
  • Accepted : 03 Apr 2008

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