Patterns of a sylvatic yellow fever virus amplification in southeastern Senegal, 2010

Diawo Diallo, Amadou A. Sall, Cheikh T. Diagne, Oumar Faye, Kathryn A. Hanley, Michaela Buenemann, Yamar Ba, Ousmane Faye, Scott C. Weaver, Mawlouth Diallo

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

During the wet season of 2010, yellow fever virus (YFV) was detected in field-collected mosquitoes in the Kédougou region in southeastern Senegal. During this outbreak, we studied the association of the abundance of YFV-infected mosquitoes and land cover features to try and understand the dynamics of YFV transmission within the region. In total, 41,234 mosquito females were collected and tested for virus infection in 5,152 pools. YFV was detected in 67 pools; species including Aedes furcifer (52.2% of the infected pools), Ae. luteocephalus (31.3% of the infected pools), Ae. taylori (6.0%of the infected pools) and six other species (10.4%of the infected pools) captured in September (13.4%), October (70.1%), and November (16.4%). Spatially, YFV was detected from mosquitoes collected in all land cover classes but mainly, forest canopies (49.2%). Human infection is likely mediated by Ae. furcifer, the only species found infected with YFV within villages. Villages containing YFV-infected mosquitoes were significantly closer to large forests (> 2 ha) than villages in which no infected mosquitoes were detected.

Original languageEnglish (US)
Pages (from-to)1003-1013
Number of pages11
JournalAmerican Journal of Tropical Medicine and Hygiene
Volume90
Issue number6
DOIs
StatePublished - Jun 2014

ASJC Scopus subject areas

  • Parasitology
  • Virology
  • Infectious Diseases

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    Diallo, D., Sall, A. A., Diagne, C. T., Faye, O., Hanley, K. A., Buenemann, M., Ba, Y., Faye, O., Weaver, S. C., & Diallo, M. (2014). Patterns of a sylvatic yellow fever virus amplification in southeastern Senegal, 2010. American Journal of Tropical Medicine and Hygiene, 90(6), 1003-1013. https://doi.org/10.4269/ajtmh.13-0404