Field Responses of Anopheles gambiae Complex (Diptera: Culicidae) in Liberia using Yeast-Generated Carbon Dioxide and Synthetic Lure-Baited Light Traps

Malaria infection is a serious public health problem throughout Liberia, but vector surveillance is limited or nonexistent in remote regions of the country. To better understand the spatial and temporal distribution of malaria vectors in Liberia and to support vector and malaria activities of the Li...

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Bibliographic Details
Published in:	Journal of medical entomology 2013-07, Vol.50 (4), p.863-870
Main Authors:	Obenauer, P. J., Abdel-Dayem, M. S., Stoops, C. A., Villinski, J. T., Tageldin, R., Fahmy, N. T., Ii, J. W. Diclaro, Bolay, F.
Format:	Article
Language:	eng
Subjects:	Animals Anopheles Anopheles - classification Anopheles - genetics Anopheles gambiae bait traps Carbon Dioxide Culicidae - classification Culicidae - genetics Culicidae - physiology Health aspects incandescent lighting Insect Vectors - classification Insect Vectors - genetics LEDs Liberia Light light traps light-emitting diode Malaria monitoring mosquito Mosquito Control Pheromones Plasmodium - physiology Polymerase Chain Reaction Polymorphism, Restriction Fragment Length public health S-form Seasons VECTOR-BORNE DISEASES, SURVEILLANCE, PREVENTION
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Summary:	Malaria infection is a serious public health problem throughout Liberia, but vector surveillance is limited or nonexistent in remote regions of the country. To better understand the spatial and temporal distribution of malaria vectors in Liberia and to support vector and malaria activities of the Liberian Ministry of Health, a study was conducted to determine the efficacy of light traps baited with a synthetic lure and CO2 for capturing Anopheles gambiae sensu lato (Giles). Traps with a ultraviolet, light-emitting diode, and incandescent lights baited with a synthetic skin lure and CO2 combinations were evaluated at four field sites in three counties of Liberia for five consecutive nights every 8 wk during 2011. In total, 4,788 mosquitoes representing 56 species from nine genera were collected throughout the 30-wk study; An. gambiae s. l. comprised 32% and of the148 An. gambiae s. s. collected, 85% were of the S form. A greater percentage of An. gambiae s. l. were collected in ultraviolet traps baited with a synthetic lure and CO2 compared with any other trap configuration. The influence of trap configuration on conclusions from surveillance efforts, specifically with regards to An. gambiae is discussed.
ISSN:	0022-2585 1938-2928