Bloodfeeding Patterns of Sylvatic Arbovirus Vectors in Southeastern Senegal

Trans R Soc Trop Med Hyg. 2013 Mar;107(3):200-3. doi: 10.1093/trstmh/trs095.

Abstract

Background: Dengue (DENV), yellow fever (YFV) and chikungunya (CHIKV) viruses circulate in sylvatic, enzootic transmission cycles in southeastern Senegal, but understanding of the vector-host interactions involved is limited.

Methods: The vertebrate hosts of several potential mosquito vectors of the three viruses were identified by PCR amplification and sequencing portions of the cytochrome b gene from bloodmeals of mosquitoes collected in Kedougou, Senegal, June 2010-January 2011.

Results: We identified the sources of 65 bloodmeals of 82 engorged mosquitoes. Aedes taylori was the only species that fed on monkeys (Chlorocebus sabaeus and Papio papio). The majority of the avian-derived bloodmeals were from the Western Plantain-eater (Crinifer piscator).

Conclusion: These findings corroborate the importance of Ae. taylori and African monkeys in the sylvatic cycles of YFV, DENV and CHIKV and suggest the possible involvement of other vertebrates.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Arbovirus Infections / transmission*
  • Birds
  • Culicidae / physiology*
  • Feeding Behavior
  • Host-Parasite Interactions*
  • Insect Vectors / physiology*
  • Mammals
  • Polymerase Chain Reaction
  • Senegal