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Che-Mendoza A, González-Olvera G, Medina-Barreiro A, Arisqueta-Chablé C, Herrera-Bojórquez J, Bibiano-Marín W, Kirstein O, Vazquez-Prokopec GM, Manrique-Saide P. Residual efficacy of the neonicotinoid insecticide clothianidin against pyrethroid-resistant Aedes aegypti. Pest Manag Sci 2023; 79:638-644. [PMID: 36223080 PMCID: PMC9845138 DOI: 10.1002/ps.7231] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/06/2022] [Accepted: 10/12/2022] [Indexed: 05/16/2023]
Abstract
BACKGROUND Here we report the residual efficacy of the neonicotinoid insecticide clothianidin against pyrethroid-resistant Aedes aegypti. We first conducted a range-finding evaluation of clothianidin on three different substrates (wall, wood, cloth) using three doses (100, 300 and 600 mg a.i. m-2 ) and conducting World Health Organization (WHO) cone bioassays to assess acute (24 h) and delayed (up to 7 days) mortality. In experimental houses located in Merida (Mexico) and using free-flying pyrethroid-resistant Ae. aegypti females, we quantified the acute and delayed mortality after a 24-h exposure to the targeted indoor residual spraying (TIRS) of two clothianidin doses (100 and 300 mg a.i. m-2 ). RESULTS Range-finding studies with WHO cones showed low (<50%) acute mortality for all surfaces, doses and times post spraying. Delayed mortality was higher, with average values above or close to the 60% mark (and 95% confidence interval estimates crossing 80% for the 600 mg a.i. m-2 dose). In experimental houses, a similar low acute mortality was quantified (range of mortality across 12 months was 2-44% for 100 mg a.i. m-2 and 8-61% for 300 mg a.i/m2 ). However, delayed mortality showed a strong effect of clothianidin on free-flying Ae. aegypti, with values above 80% up to 7 months post-TIRS. CONCLUSION Novel residual insecticide molecules have a promising outlook for Ae. aegypti control and can contribute to the expansion and adoption of TIRS in urban areas. clothianidin can contribute to the control of resistant Ae. aegypti and provide residual control for up to 7 months after application. © 2022 Society of Chemical Industry.
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Affiliation(s)
- A Che-Mendoza
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Mexico
| | - G González-Olvera
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Mexico
| | - A Medina-Barreiro
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Mexico
| | - C Arisqueta-Chablé
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Mexico
| | - J Herrera-Bojórquez
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Mexico
| | - W Bibiano-Marín
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Mexico
| | - O Kirstein
- Department of Environmental Sciences, Emory University, Mathematics and Science Center, 400 Dowman Drive Ste: E530, Atlanta, GA 30322, USA
| | - GM Vazquez-Prokopec
- Department of Environmental Sciences, Emory University, Mathematics and Science Center, 400 Dowman Drive Ste: E530, Atlanta, GA 30322, USA
| | - P Manrique-Saide
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Mexico
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Manrique-Saide P, Herrera-Bojórquez J, Villegas-Chim J, Puerta-Guardo H, Ayora-Talavera G, Parra-Cardeña M, Medina-Barreiro A, Ramírez-Medina M, Chi-Ku A, Trujillo-Peña E, Méndez-Vales RE, Delfín-González H, Toledo-Romaní ME, Bazzani R, Bolio-Arceo E, Gómez-Dantés H, Che-Mendoza A, Pavía-Ruz N, Kirstein OD, Vazquez-Prokopec GM. Protective effect of house screening against indoor Aedes aegypti in Mérida, Mexico: A cluster randomised controlled trial. Trop Med Int Health 2021; 26:1677-1688. [PMID: 34587328 PMCID: PMC9298035 DOI: 10.1111/tmi.13680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the protective effect of house screening (HS) on indoor Aedes aegypti infestation, abundance and arboviral infection in Merida, Mexico. METHODS In 2019, we performed a cluster randomised controlled trial (6 control and 6 intervention areas: 100 households/area). Intervention clusters received permanently fixed fiberglass HS on all windows and doors. The study included two cross-sectional entomologic surveys, one baseline (dry season in May 2019) and one post-intervention (PI, rainy season between September and October 2019). The presence and number of indoor Aedes females and blood-fed females (indoor mosquito infestation) as well as arboviral infections with dengue (DENV) and Zika (ZIKV) viruses were evaluated in a subsample of 30 houses within each cluster. RESULTS HS houses had significantly lower risk for having Aedes aegypti female mosquitoes (odds ratio [OR] = 0.56, 95% CI 0.33-0.97, p = 0.04) and blood-fed females (OR = 0.53, 95% CI 0.28-0.97, p = 0.04) than unscreened households from the control arm. Compared to control houses, HS houses had significantly lower indoor Ae. aegypti abundance (rate ratio [RR] = 0.50, 95% CI 0.30-0.83, p = 0.01), blood-fed Ae. aegypti females (RR = 0.48, 95% CI 0.27-0.85, p = 0.01) and female Ae. aegypti positive for arboviruses (OR = 0.29, 95% CI 0.10-0.86, p = 0.02). The estimated intervention efficacy in reducing Ae. aegypti arbovirus infection was 71%. CONCLUSIONS These results provide evidence supporting the use of HS as an effective pesticide-free method to control house infestations with Aedes aegypti and reduce the transmission of Aedes-transmitted viruses such as DENV, chikungunya (CHIKV) and ZIKV.
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Affiliation(s)
- Pablo Manrique-Saide
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Josué Herrera-Bojórquez
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Josué Villegas-Chim
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Henry Puerta-Guardo
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Guadalupe Ayora-Talavera
- Laboratorio de Virología, Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán, Mérida, México
| | - Manuel Parra-Cardeña
- Laboratorio de Virología, Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán, Mérida, México
| | - Anuar Medina-Barreiro
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Marypaz Ramírez-Medina
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Aylin Chi-Ku
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Emilio Trujillo-Peña
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | | | - Hugo Delfín-González
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - María E Toledo-Romaní
- Departamento de Epidemiología, Instituto de Medicina Tropical 'Pedro Kourí', La Habana, Cuba
| | - Roberto Bazzani
- International Development Research Centre of Canada, Regional Office for Latin America and the Caribbean, Montevideo, Uruguay
| | | | - Hector Gómez-Dantés
- Centro de Investigación en Sistemas de Salud, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Azael Che-Mendoza
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Norma Pavía-Ruz
- Laboratorio de Hematología, Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán, Mérida, México
| | - Oscar D Kirstein
- Department of Environmental Sciences, Emory University, Atlanta, Georgia, USA
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Manrique-Saide P, Herrera-Bojórquez J, Medina-Barreiro A, Trujillo-Peña E, Villegas-Chim J, Valadez-González N, Ahmed AMM, Delfín-González H, Palacio-Vargas J, Che-Mendoza A, Pavía-Ruz N, Flores AE, Vazquez-Prokopec G. Insecticide-treated house screening protects against Zika-infected Aedes aegypti in Merida, Mexico. PLoS Negl Trop Dis 2021; 15:e0009005. [PMID: 33465098 PMCID: PMC7853519 DOI: 10.1371/journal.pntd.0009005] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 02/02/2021] [Accepted: 11/20/2020] [Indexed: 11/18/2022] Open
Abstract
Background The integration of house-screening and long-lasting insecticidal nets, known as insecticide-treated screening (ITS), can provide simple, safe, and low-tech Aedes aegypti control. Cluster randomised controlled trials in two endemic localities for Ae. aegypti of south Mexico, showed that ITS conferred both, immediate and sustained (~2 yr) impact on indoor-female Ae. aegypti infestations. Such encouraging results require further validation with studies quantifying more epidemiologically-related endpoints, including arbovirus infection in Ae. aegypti. We evaluated the efficacy of protecting houses with ITS on Ae. aegypti infestation and arbovirus infection during a Zika outbreak in Merida, Yucatan, Mexico. Methodology/Principal findings A two-arm cluster-randomised controlled trial evaluated the entomological efficacy of ITS compared to the absence of ITS (with both arms able to receive routine arbovirus vector control) in the neighbourhood Juan Pablo II of Merida. Cross-sectional entomological surveys quantified indoor adult mosquito infestation and arbovirus infection at baseline (pre-ITS installation) and throughout two post-intervention (PI) surveys spaced at 6-month intervals corresponding to dry/rainy seasons over one year (2016–2017). Household-surveys assessed the social reception of the intervention. Houses with ITS were 79–85% less infested with Aedes females than control houses up to one-year PI. A similar significant trend was observed for blood-fed Ae. aegypti females (76–82%). Houses with ITS had significantly less infected female Ae. aegypti than controls during the peak of the epidemic (OR = 0.15, 95%CI: 0.08–0.29), an effect that was significant up to a year PI (OR = 0.24, 0.15–0.39). Communities strongly accepted the intervention, due to its perceived mode of action, the prevalent risk for Aedes-borne diseases in the area, and the positive feedback from neighbours receiving ITS. Conclusions/Significance We show evidence of the protective efficacy of ITS against an arboviral disease of major relevance, and discuss the relevance of our findings for intervention adoption. We evaluated the efficacy of protecting houses with insecticide-treated nets permanently fixed with aluminium frames on external doors and windows on Ae. aegypti infestation and arbovirus infection during a Zika outbreak in Merida, Yucatan, Mexico. Houses protected with screens were ≈80% less infested with Aedes females and very importantly, had significantly less infected female Ae. aegypti during the peak of the epidemic. Communities strongly accepted the intervention, due to its perceived mode of action, the prevalent risk for Aedes-borne diseases in the area, and the positive feedback from neighbours. House screening provides a simple, affordable sustainable method to reduce human-vector contact inside houses and can protect against dengue, chikungunya and Zika.
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Affiliation(s)
- Pablo Manrique-Saide
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
- * E-mail:
| | - Josué Herrera-Bojórquez
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Anuar Medina-Barreiro
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Emilio Trujillo-Peña
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Josué Villegas-Chim
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Nina Valadez-González
- Centro de Investigaciones Regionales, Unidad Biomédicas, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Ahmed M. M. Ahmed
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
- Faculty of Agriculture, Assiut University, Assiut, Egypt
| | - Hugo Delfín-González
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | | | - Azael Che-Mendoza
- Unidad Colaborativa para Bioensayos Entomologicos, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Norma Pavía-Ruz
- Centro de Investigaciones Regionales, Unidad Biomédicas, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Adriana E. Flores
- Facultad de Ciencias Biologicas, Universidad Autonoma de Nuevo Leon, San Nicolas de los Garza, Nuevo Leon, Mexico
| | - Gonzalo Vazquez-Prokopec
- Department of Environmental Sciences, Emory University, Atlanta, Georgia, United States of America
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Herrera-Bojórquez J, Trujillo-Peña E, Vadillo-Sánchez J, Riestra-Morales M, Che-Mendoza A, Delfín-González H, Pavía-Ruz N, Arredondo-Jimenez J, Santamaría E, Flores-Suárez AE, Vazquez-Prokopec G, Manrique-Saide P. Efficacy of Long-lasting Insecticidal Nets With Declining Physical and Chemical Integrity on Aedes aegypti (Diptera: Culicidae). J Med Entomol 2020; 57:503-510. [PMID: 31603517 DOI: 10.1093/jme/tjz176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Indexed: 06/10/2023]
Abstract
Fitting long-lasting insecticidal nets (LLIN) as screens on doors/windows has a significant impact on indoor-adult Aedes aegypti (L.), with entomological reductions measured in a previous study being significant for up to 2 yr post-installation, even in the presence of pyrethroid-resistant Aedes populations. To better understand the mode of LLIN protection, bioassays were performed to evaluate the effects of field deployment (0, 6, and 12 mo) and damage type (none, central, lateral, and multiple) on LLIN efficacy. Contact bioassays confirmed that LLIN residual activity (median knockdown time, in minutes, or MKDT) decreased significantly over time: 6.95 (95% confidence interval [CI]: 5.32-8.58) to 9.24 (95% CI: 8.69-9.79) MKDT at 0- and 12-mo age, respectively, using a pyrethroid-susceptible Aedes strain. Tunnel tests (exposing human forearm for 40 min as attractant) showed that deployment time affected negatively Aedes passage inhibition from 54.9% (95% CI: 43.5-66.2) at 0 mo to 35.7% (95% CI: 16.3-55.1) at 12 mo and blood-feeding inhibition from 65.2% (95% CI: 54.2-76.2) to 48.9% (95% CI: 26.4-71.3), respectively; both the passage/blood-feeding inhibition increased by a factor of 1.8-2.9 on LLINs with multiple and central damages compared with nets with lateral damage. Mosquito mortality was 74.6% (95% CI: 65.3-83.9) at 0 mo, 72.3% (95% CI: 64.1-80.5) at 6 mo, and 59% (95% CI: 46.7-71.3) at 12 mo. Despite the LLIN physical integrity could be compromised over time, we demonstrate that the remaining chemical effect after field conditions would still contribute to killing/repelling mosquitoes.
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Affiliation(s)
- Josué Herrera-Bojórquez
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
| | - Emilio Trujillo-Peña
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
| | - José Vadillo-Sánchez
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
| | - Martin Riestra-Morales
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
| | - Azael Che-Mendoza
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
| | - Hugo Delfín-González
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
| | - Norma Pavía-Ruz
- Centro de Investigaciones Regionales, Dr. Hideyo Noguchi, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
| | - Juan Arredondo-Jimenez
- Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, San Nicolas de los Garza, N.L., Mexico
| | | | - Adriana E Flores-Suárez
- Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, San Nicolas de los Garza, N.L., Mexico
| | | | - Pablo Manrique-Saide
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan. Merida, Yucatan, Mexico
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Che-Mendoza A, Medina-Barreiro A, Koyoc-Cardeña E, Uc-Puc V, Contreras-Perera Y, Herrera-Bojórquez J, Dzul-Manzanilla F, Correa-Morales F, Ranson H, Lenhart A, McCall PJ, Kroeger A, Vazquez-Prokopec G, Manrique-Saide P. House screening with insecticide-treated netting provides sustained reductions in domestic populations of Aedes aegypti in Merida, Mexico. PLoS Negl Trop Dis 2018; 12:e0006283. [PMID: 29543805 PMCID: PMC5870999 DOI: 10.1371/journal.pntd.0006283] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 03/27/2018] [Accepted: 01/30/2018] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND There is a need for effective methods to control Aedes aegypti and prevent the transmission of dengue, chikungunya, yellow fever and Zika viruses. Insecticide treated screening (ITS) is a promising approach, particularly as it targets adult mosquitoes to reduce human-mosquito contact. METHODOLOGY/PRINCIPAL FINDINGS A cluster-randomised controlled trial evaluated the entomological efficacy of ITS based intervention, which consisted of the installation of pyrethroid-impregnated long-lasting insecticide-treated netting material fixed as framed screens on external doors and windows. A total of 10 treatment and 10 control clusters (100 houses/cluster) were distributed throughout the city of Merida, Mexico. Cross-sectional entomological surveys quantified indoor adult mosquito infestation at baseline (pre-intervention) and throughout four post-intervention (PI) surveys spaced at 6-month intervals corresponding to dry/rainy seasons over two years (2012-2014). A total of 844 households from intervention clusters (86% coverage) were protected with ITS at the start of the trial. Significant reductions in the indoor presence and abundance of Ae. aegypti adults (OR = 0.48 and IRR = 0.45, P<0.05 respectively) and the indoor presence and abundance of Ae. aegypti female mosquitoes (OR = 0.47 and IRR = 0.44, P<0.05 respectively) were detected in intervention clusters compared to controls. This high level of protective effect was sustained for up to 24 months PI. Insecticidal activity of the ITS material declined with time, with ~70% mortality being demonstrated in susceptible mosquito cohorts up to 24 months after installation. CONCLUSIONS/SIGNIFICANCE The strong and sustained entomological impact observed in this study demonstrates the potential of house screening as a feasible, alternative approach to a sustained long-term impact on household infestations of Ae. aegypti. Larger trials quantifying the effectiveness of ITS on epidemiological endpoints are warranted and therefore recommended.
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Affiliation(s)
- Azael Che-Mendoza
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaria de Salud, Ciudad de Mexico, Mexico
| | - Anuar Medina-Barreiro
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Edgar Koyoc-Cardeña
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Valentín Uc-Puc
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Yamili Contreras-Perera
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Josué Herrera-Bojórquez
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Felipe Dzul-Manzanilla
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaria de Salud, Ciudad de Mexico, Mexico
| | - Fabian Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaria de Salud, Ciudad de Mexico, Mexico
| | - Hilary Ranson
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Audrey Lenhart
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Centers for Disease Control and Prevention, Entomology Branch, Atlanta, Georgia, United States of America
| | - Philip J. McCall
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Axel Kroeger
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Special Programme for Research and Training in Tropical Diseases (TDR), World Health Organization, Geneva, Switzerland
| | - Gonzalo Vazquez-Prokopec
- Department of Environmental Sciences, Emory University, Atlanta, Georgia, United States of America
| | - Pablo Manrique-Saide
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
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Uc-Puc V, Herrera-Bojórquez J, Carmona-Carballo C, Che-Mendoza A, Medina-Barreiro A, Chablé-Santos J, Arredondo-Jiménez JI, Flores-Suárez AE, Manrique-Saide P. [Effectiveness of commercial repellents against Aedes aegypti (L.) in Yucatan, México]. Salud Publica Mex 2016; 58:472-475. [PMID: 27599081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 03/30/2016] [Indexed: 06/06/2023] Open
Abstract
OBJECTIVE We assessed the efficacy of commercial repellents available in Yucatan against Aedes aegypti, vector of dengue, Chikungunya and Zika. MATERIALS AND METHODS Protection time was determined based on WHO/CTD/ WHOPES/IC y la NOM-032-SSA2-20I4. RESULTS Products with DEET (N, N-diethyl-3-methylbenzamide) at 25% met the recommended protection. Efficacy was directly proportional to the concentration of DEET; botanicals repellents resulted no protective. CONCLUSIONS Repellents with DEET provided more protection against Ae. aegypti and botanical repellents, including impregnated wristbands, provided no protection.
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Manrique-Saide P, Uc-Puc V, Herrera-Bojórquez J, Carmona-Carballo C, Che-Mendoza A, Medina-Barreiro A, Chablé-Santos J, Arredondo-Jiménez JI, Flores-Suárez AE, Manrique-Saide P. Efectividad de repelentes comerciales disponibles contra el mosquito Aedesaegypti (L.) en Yucatán, México. SALUD PÚBLICA DE MÉXICO 2016. [DOI: 10.21149/spm.v58i4.8030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Che-Mendoza A, Guillermo-May G, Herrera-Bojórquez J, Barrera-Pérez M, Dzul-Manzanilla F, Gutierrez-Castro C, Arredondo-Jiménez JI, Sánchez-Tejeda G, Vazquez-Prokopec G, Ranson H, Lenhart A, Sommerfeld J, McCall PJ, Kroeger A, Manrique-Saide P. Long-lasting insecticide-treated house screens and targeted treatment of productive breeding-sites for dengue vector control in Acapulco, Mexico. Trans R Soc Trop Med Hyg 2015; 109:106-15. [PMID: 25604761 PMCID: PMC4299524 DOI: 10.1093/trstmh/tru189] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background Long-lasting insecticidal net screens (LLIS) fitted to domestic windows and doors in combination with targeted treatment (TT) of the most productive Aedes aegypti breeding sites were evaluated for their impact on dengue vector indices in a cluster-randomised trial in Mexico between 2011 and 2013. Methods Sequentially over 2 years, LLIS and TT were deployed in 10 treatment clusters (100 houses/cluster) and followed up over 24 months. Cross-sectional surveys quantified infestations of adult mosquitoes, immature stages at baseline (pre-intervention) and in four post-intervention samples at 6-monthly intervals. Identical surveys were carried out in 10 control clusters that received no treatment. Results LLIS clusters had significantly lower infestations compared to control clusters at 5 and 12 months after installation, as measured by adult (male and female) and pupal-based vector indices. After addition of TT to the intervention houses in intervention clusters, indices remained significantly lower in the treated clusters until 18 (immature and adult stage indices) and 24 months (adult indices only) post-intervention. Conclusions These safe, simple affordable vector control tools were well-accepted by study participants and are potentially suitable in many regions at risk from dengue worldwide.
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Affiliation(s)
- Azael Che-Mendoza
- Servicios de Salud de Yucatán, Gobierno del Estado de Yucatán, Mérida C.P. 97000, Mexico
| | | | | | | | | | | | | | - Gustavo Sánchez-Tejeda
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaria de Salud, Mexico
| | | | - Hilary Ranson
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK
| | - Audrey Lenhart
- US Centers for Disease Control and Prevention, Atlanta, GA30329, USA
| | - Johannes Sommerfeld
- Special Programme for Research and Training in Tropical Diseases (TDR), World Health Organization, 1211 Geneva 27, Switzerland
| | - Philip J McCall
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK
| | - Axel Kroeger
- Special Programme for Research and Training in Tropical Diseases (TDR), World Health Organization, 1211 Geneva 27, Switzerland
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