A Multi-species Bait for Chagas Disease Vectors

Theo Mota, Ana C. R. Vitta, Alicia N. Lorenzo-Figueiras, Carla P. Barezani, Carlos L. Zani, Claudio R. Lazzari, Liléia Diotaiuti, Lynne Jeffares, Björn Bohman, Marcelo G. Lorenzo

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Abstract

Author Summary Chagas disease is a parasitic infection affecting approximately 12 million people, and is considered to be one of the most severe burdens for public health in Latin America. Control of the disease is based on attempted elimination of domestic populations of triatomine bugs, the insects transmitting the disease to humans, by means of insecticide spraying. Currently, vigilance programs monitoring triatomine reinfestation processes in houses are performed by manual search for bugs. Effective and sustainable new methods allowing continuous monitoring of domestic triatomine populations are required. Based on the fact that the insects hide in dark refuges that are marked by volatile signals emitted in their feces, we screened the feces of three species for volatile compounds common to these prominent vectors. The potential for these odors to promote triatomine aggregation was evaluated and we present evidence that a synthetic blend of these substances is capable of recruiting bugs into shelters, mimicking the natural pheromone. This blend may be used to develop a bait to monitor triatomine reinfestation processes in a similar manner as is used commonly for the monitoring of agricultural pests.
Original languageEnglish
Article numbere2677
JournalPLoS Neglected Tropical Diseases
Volume8
Issue number2
DOIs
Publication statusPublished - 27 Feb 2014
Externally publishedYes

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Mota, T., Vitta, A. C. R., Lorenzo-Figueiras, A. N., Barezani, C. P., Zani, C. L., Lazzari, C. R., ... Lorenzo, M. G. (2014). A Multi-species Bait for Chagas Disease Vectors. PLoS Neglected Tropical Diseases, 8(2), [e2677]. https://doi.org/10.1371/journal.pntd.0002677