Vectors of Chikungunya Virus in Senegal : Transmission cycles
Chikungunya fever is a viral disease transmitted to human beings by Aedes genus mosquitoes. From 1972 to 1986 in Ke´dougou, Senegal, 178 Chikungunya virus strains were isolated from gallery forest mosquitoes, with most of them isolated from Ae. furcifer-taylori (129 strains), Ae. luteocephalus (27 strains), and Ae. dalzieli (12 strains). The characteristics of the sylvatic transmission cycle are a circulation periodicity with silent intervals that last approximately three years. Few epidemics of this disease have been reported in Senegal. The most recent one occurred in 1996 in Kaffrine where two Chikungunya virus strains were isolated from Ae. aegypti. The retrospective analysis of viral isolates from mosquitoes, wild vertebrates, and humans allowed to us to characterize Chikungunya virus transmission cycles in Senegal and to compare them
| Main Authors: | , , , |
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| Format: | Journal Contribution biblioteca |
| Language: | English |
| Published: |
The American Society of Tropical Medicine and Hygiene
1999
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| Subjects: | Mosquitoes, Viral diseases, |
| Online Access: | http://hdl.handle.net/1834/814 |
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| Summary: | Chikungunya fever is a viral disease transmitted to human beings by Aedes genus mosquitoes. From
1972 to 1986 in Ke´dougou, Senegal, 178 Chikungunya virus strains were isolated from gallery forest mosquitoes,
with most of them isolated from Ae. furcifer-taylori (129 strains), Ae. luteocephalus (27 strains), and Ae. dalzieli (12
strains). The characteristics of the sylvatic transmission cycle are a circulation periodicity with silent intervals that
last approximately three years. Few epidemics of this disease have been reported in Senegal. The most recent one
occurred in 1996 in Kaffrine where two Chikungunya virus strains were isolated from Ae. aegypti. The retrospective
analysis of viral isolates from mosquitoes, wild vertebrates, and humans allowed to us to characterize Chikungunya virus transmission cycles in Senegal and to compare them |
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