Volume 91, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



To assess the risk of emergence of chikungunya virus (CHIKV) in West Africa, vector competence of wild-type, urban, and non-urban and from Senegal and Cape Verde for CHIKV was investigated. Mosquitoes were fed orally with CHIKV isolates from mosquitoes (ArD30237), bats (CS13-288), and humans (HD180738). After 5, 10, and 15 days of incubation following an infectious blood meal, presence of CHIKV RNA was determined in bodies, legs/wings, and saliva using real-time reverse transcription–polymerase chain reaction. showed high susceptibility (50–100%) and early dissemination and transmission of all CHIKV strains tested. exhibited infection rates ranging from 0% to 50%. from Cape Verde and Kedougou, but not those from Dakar, showed the potential to transmit CHIKV in saliva. Analysis of biology and competence showed relatively high infective survival rates for and from Cape Verde, suggesting their efficient vector capacity in West Africa.


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  • Received : 27 Oct 2013
  • Accepted : 07 Mar 2014

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