title: Repellency of 29 Synthetic and Natural Commercial Topical Insect Repellents Against Aedes aegypti (Diptera: Culicidae) in Central Mexico.
abstract: In Mexico, the use of repellents to prevent insects from landing and biting is a common practice. However, variation in the efficiency of natural and synthetic repellents has been observed. In this study, we evaluated the repellency and protection time of 16 synthetic and 13 natural-based commercial products against Aedes aegypti (L.) from an endemic dengue area (Jojutla, Morelos) in Central Mexico. The "arm exposure" cage test was used to assess the efficacy of the repellents. Tests were conducted by three adult volunteers. Results showed that DEET (N, N-Diethyl-3-methylbenzamide) repellents provided the highest protection and duration times against Ae. aegypti. However, low repellency and short-time protection was observed (when compared with the manufacturers' protection times). Natural-based products did not repel (either landing or biting) mosquitoes for >30 min. These results show that most of the repellent products did not provide satisfactory levels of personal protection against mosquito bites. Frequent reapplication of repellents (synthetic and natural-based) may compensate for their short duration of action. Repellent efficacy data must be integrated into the decision-making process for an optimal response to the local (or specific region) situation.
authors.affiliation: Secretaría de Salud. Lieja 7, Col. Juárez, C.P. 06600, Mexico City, Mexico.
authors.forename: Pablo A
authors.initials: PA
authors.lastname: Kuri-Morales
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.
authors.forename: Fabián
authors.initials: F
authors.lastname: Correa-Morales
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.
authors.forename: Cassandra
authors.initials: C
authors.lastname: González-Acosta
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.
authors.forename: Gustavo
authors.initials: G
authors.lastname: Sánchez-Tejeda
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.|Unidad de Bioensayo-Centro Regional de Control de Vectores Panchimalco, Servicios de Salud de Morelos, Emiliano Zapata 95, Jojutla, C.P. 62900, Morelos, Mexico.
authors.forename: Miguel
authors.initials: M
authors.lastname: Moreno-Garcia
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Dávalos-Becerril
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.
authors.forename: Marissa F
authors.initials: MF
authors.lastname: Juárez-Franco
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.
authors.forename: José Ismael
authors.initials: JI
authors.lastname: Benitez-Alva
authors.affiliation: Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico.
authors.forename: Jesús F
authors.initials: JF
authors.lastname: González-Roldán
mesh_terms: D000330:Aedes; D000818:Animals; D005260:Female; D007299:Insect Bites and Stings / Q000517:prevention & control*; D007302:Insect Repellents; D008800:Mexico; D000072138:Mosquito Vectors
chemical_list: D007302:Insect Repellents
keywords: Aedes aegypti; Central Mexico; essential oil; mosquito control; repellent