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United States Department of Agriculture

Agricultural Research Service

Title: Mass Spectrometric Analysis of Human Skin Emanations to Identify Compounds That Influence the Host-Seeking Behavior of Mosquitoes.

Author
item Bernier, Ulrich

Submitted to: Entomology International Congress Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: July 15, 2000
Publication Date: N/A

Technical Abstract: Progress in the areas of mosquito attractants and mosquito inhibitors was reported in an invited talk at an international entomology meeting in Iguassu Falls, Brazil. The presentation consisted of chemical and biological studies conducted at the Center for Medical, Agricultural, and Veterinary Entomology, in Gainesville, FL. These studies involved the use of a novel method of sample collection for the analysis of human emanations. Using this sampling method, over 275 compounds were identified in human emanations. The chemistry work led to the discovery of the most efficient attractant blends for mosquitoes known to-date. These blends function without carbon dioxide and are unique because they are the only known synthetic attractant blends that have been shown to be more efficient than some humans at attracting yellow fever mosquitoes. Some human-produced compounds reduce the ability of mosquitoes to find attractant odors. Use of these masking compounds in proximity of human odors results in the odors from all human subjects being less attractive to the extent that synthetic attractants attract more mosquitoes in direct competition, for every case tested so far.

Last Modified: 8/27/2014