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Pérez-Sánchez E, Montiel-Cruz R, Romero-Domínguez E, Pascacio-Bermúdez G, Báez-Hernández A, Díaz Del Castillo-Flores G, Correa-Morales F, Vázquez-Prokopec G, Manrique-Saide P, Che-Mendoza A, Meneses-Ruiz G, López-Martínez I, Jesús Sánchez M. Seroprevalence of Trypanosoma cruzi among children from Veracruz, Mexico: Epidemiological baseline for a control model based on Chagas disease active transmission. Biomedica 2024; 44:92-101. [PMID: 38648342 DOI: 10.7705/biomedica.7126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/18/2023] [Accepted: 01/26/2024] [Indexed: 04/25/2024]
Abstract
Introduction. In 2021, the Secretaría de Salud de México and the Pan American Health Organization launched an initiative to interrupt intra-domiciliary vector transmission of Trypanosoma cruzi based on the prevalence of Chagas disease in children. The Mexican State of Veracruz was leading this initiative. Objective. To estimate the seroprevalence of T. cruzi infection among children under 15 years of age from rural areas of Veracruz, México. Materials and methods. We identified eight localities of high priority from the Municipality of Tempoal, Veracruz, for baseline serology. Blood samples were collected on filter paper from 817 individuals between June and August 2017, for screening with a third-generation enzyme immunoassay. Reactive cases were confirmed by indirect hemagglutination, enzyme-linked immunosorbent assay, and indirect immunofluorescence tests on peripheral blood serum samples. We calculated seroprevalence and 95% confidence intervals (CI). Results. We confirmed Chagas disease cases in children under 15 years of age with a seroprevalence of 1,9% (95 % CI = 1,12-3,16) in the localities of Citlaltepetl, Cornizuelo, Cruz de Palma and Rancho Nuevo. Conclusions. These results indicate recent transmission of T. cruzi in these communities and allow to establish an epidemiological baseline for the design and implementation of a model focused on geographical areas with active transmission to advance toward the elimination of intra-domiciliary vector transmission of this parasite in Mexico.
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Affiliation(s)
| | | | | | | | | | | | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaría de Salud, Ciudad de México, México
| | | | - Pablo Manrique-Saide
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | - Azael Che-Mendoza
- Unidad Colaborativa para Bioensayos Entomológicos, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, México
| | | | - Irma López-Martínez
- Instituto de Diagnóstico y Referencia Epidemiológicos, Ciudad de México, México
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Correa-Morales F, González-Acosta C, Ibarra-Ojeda D, Moreno-García M. West Nile virus in Mexico: Why vectors matter for explaining the current absence of epidemics. Acta Trop 2024; 249:107065. [PMID: 37926384 DOI: 10.1016/j.actatropica.2023.107065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/07/2023]
Abstract
Since 2002, West Nile Virus (WNV) has been reported in 18 states in Mexico, either by PCR or serological testing. However, it is believed that the virus is present in more states. Only four states (out of 32) have reported confirmed human cases, and one state has serological evidence. In the country, WNV is present in mainly horses and birds, but its presence extends to crocodiles, felines, canines, swines, donkeys, caprines, antilopes, cattle, bats, and camelids. Positive mosquito species include Aedes and Culex spp. Different hypotheses have been proposed to explain the absence of WNV epidemics in Latin America. Since some regions of Mexico and the United States share ecological and climatic conditions, these hypotheses may not be sufficient to account for the absence of WNV outbreaks or epidemics. This paper discusses the proposed ideas and attempts to contextualize them for Mexico, particularly for the U.S.-Mexico border, where WNV infections have been reported in humans, horses, and mosquitoes. We propose that integration of urban ecology and entomology knowledge is needed to better understand the absence of WN cases in Mexico.
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Affiliation(s)
- Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades. Benjamín Franklin 132, Escandón, Ciudad de México C.P. 11800, Mexico
| | - Cassandra González-Acosta
- Centro Nacional de Programas Preventivos y Control de Enfermedades. Benjamín Franklin 132, Escandón, Ciudad de México C.P. 11800, Mexico
| | - David Ibarra-Ojeda
- Instituto de Servicios de Salud Pública del Estado de Baja California. Palacio Federal, 3er piso. Av. De los Pioneros #1005. Centro Cívico, Mexicali, Baja California 21000, Mexico
| | - Miguel Moreno-García
- Centro Nacional de Programas Preventivos y Control de Enfermedades. Benjamín Franklin 132, Escandón, Ciudad de México C.P. 11800, Mexico.
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Martínez-Burgos M, Lozano-Sardaneta YN, Rodríguez-Rojas JJ, Gómez-Rivera ÁS, Canto-Mis KL, Flores-Escobar E, Mis-Ávila PC, Correa-Morales F, Becker I. Species diversity and detection of pathogens in phlebotomine sand flies collected from forest management areas of Quintana Roo, Mexico. Med Vet Entomol 2023; 37:845-858. [PMID: 37649415 DOI: 10.1111/mve.12691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/14/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
Sand flies have expanded their areas of distribution, thereby increasing the risk of pathogen transmission in non-endemic areas. To establish efficient prevention and control strategies for the transmission of vector-borne pathogens, it is important to understand seasonal dynamics of their vectors. In Mexico, there are several areas where the contact between sand flies, hosts and reservoirs favours the transmission of the pathogen. We compared sand fly communities in a forest management area and a conserved area in Noh-Bec, Quintana Roo, Mexico. The analysis included species diversity, activity peaks and molecular detection of pathogens. Sand flies were collected from November to December 2021 and April to May 2022, during 84 night-traps. The conserved area showed higher numbers and greater species heterogeneity of sand flies as compared with the other sites. The β-diversity analysis revealed that sites disturbed by logging (S1, S2, S3) had greater similarity (90%) in their sand fly species composition than a conserved area (S4) (similarity = 36%). Although none of the specimens were infected with Leishmania, we detected Wolbachia (19.4%) in all four sites, as well as Bartonella (3.25%) only in the disturbed sites. Further studies on the dynamics of sand fly populations and their association with pathogens are necessary.
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Affiliation(s)
- Maribel Martínez-Burgos
- División de Estudios de Posgrado e Investigación, Instituto Tecnológico de la Zona Maya, Othón P. Blanco, Quintana Roo, Mexico
- Departamento de Enfermedades Transmitidas por Vector y Zoonosis, Servicios Estatales de Salud de Quintana Roo, Chetumal, Quintana Roo, Mexico
| | - Yokomi N Lozano-Sardaneta
- Centro de Medicina Tropical, Unidad de Medicina Experimental, Facultad de Medicina de la Universidad Nacional Autónoma de México, Universidad Nacional Autónoma, Ciudad de México, Mexico
- Facultad de Ciencias, Universidad Nacional Autónoma, Ciudad de México, Mexico
| | - Jorge J Rodríguez-Rojas
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Centro de Investigación y Desarrollo en Ciencias de la Salud, Unidad de Patógenos y Vectores, Monterrey, Nuevo León, Mexico
| | - Ángel S Gómez-Rivera
- División de Estudios de Posgrado e Investigación, Instituto Tecnológico de la Zona Maya, Othón P. Blanco, Quintana Roo, Mexico
- Departamento de Enfermedades Transmitidas por Vector y Zoonosis, Servicios Estatales de Salud de Quintana Roo, Chetumal, Quintana Roo, Mexico
| | - Karla L Canto-Mis
- División de Estudios de Posgrado e Investigación, Instituto Tecnológico de la Zona Maya, Othón P. Blanco, Quintana Roo, Mexico
| | - Eduardo Flores-Escobar
- Centro de Medicina Tropical, Unidad de Medicina Experimental, Facultad de Medicina de la Universidad Nacional Autónoma de México, Universidad Nacional Autónoma, Ciudad de México, Mexico
| | - Pedro C Mis-Ávila
- División de Estudios de Posgrado e Investigación, Instituto Tecnológico de la Zona Maya, Othón P. Blanco, Quintana Roo, Mexico
| | - Fabián Correa-Morales
- Programa de Enfermedades Transmitidas por Vector, Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Ciudad de México, Mexico
| | - Ingeborg Becker
- Centro de Medicina Tropical, Unidad de Medicina Experimental, Facultad de Medicina de la Universidad Nacional Autónoma de México, Universidad Nacional Autónoma, Ciudad de México, Mexico
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Cañeda-Guzmán IC, de Oca-Aguilar ACM, Miranda-Caballero CI, Grostieta E, Correa-Morales F, Romero-Pérez R, Romero-Contreras FE, Rodríguez-Atanacio JA, Ruiz-Tovar K, Huerta H, Mis-Avila PC, Quintanilla-Cedillo MR, Lammoglia-Villagómez MA, Blum-Domínguez S, Tamay-Segovia P, Rojas-Ronquillo R, Sánchez-Montes S, Becker I. Entomological Survey and Leishmania ( Leishmania) mexicana Prevalence in Sand Fly Species during an Outbreak of Cutaneous Leishmaniasis in Quintana Roo State, Mexico. Trop Med Infect Dis 2023; 8:465. [PMID: 37888593 PMCID: PMC10610947 DOI: 10.3390/tropicalmed8100465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023] Open
Abstract
(1) Background: Localized cutaneous leishmaniasis is a neglected vector-borne disease that has become a serious public health problem in the Yucatan Peninsula. Although more than 60% of cases originate from the state of Quintana Roo, it is one of the least explored areas in terms of incriminating vectors of the Leishmania parasite. Additionally, cases of leishmaniasis have increased substantially in that region in recent years. For this reason, we explored and provided primary evidence of Leishmania DNA in sand fly species from four localities during outbreaks of leishmaniasis in Quintana Roo. We also contributed information on the regional genetic diversity of Leishmania parasites. (2) Methods: Sand flies were collected during several periods from November 2022 to April 2023 using Mosquito Light Circle and Shannon traps, as well as an active entomological search in refuges. For Leishmania detection, we amplified a fragment of 300-350 bp of the internal transcribed spacer subunit 1 (ITS-1). (3) Results: Of the 242 females collected, we detected Leishmania DNA in 25 specimens represented by Bichromomyia olmeca (1), Psathyromyia shannoni (17), Lutzomyia cruciata (4), Psathyromyia undulata (2), and Dampfomyia deleoni (1). The detection of Leishmania in these last two species represents new records for the Yucatan Peninsula and for Mexico. Leishmania (Leishmania) mexicana was the only species detected in the Phlebotominae species, with prevalence values that ranked between 7.41% and 33.33% from specimens collected in the sylvatic areas of Cozumel Island and Petcacab. (4) Conclusions: This study provides the first evidence of infection of Da. deleoni and Pa. undulata by L. (L.) Mexicana. In addition, the presence of three dominant haplotypes in all the evaluated localities was evidenced using the analysis of genetic diversity, and the locality of Petcacab was the one with the circulation of two new haplotypes not previously described in Mexico or neighboring countries. These results highlight the importance of intensive epidemiological surveillance due to the dynamics of transmission of Leishmania between different species.
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Affiliation(s)
- Isabel C. Cañeda-Guzmán
- Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 06720, Mexico; (I.C.C.-G.); (C.I.M.-C.); (E.G.)
| | - Ana C. Montes de Oca-Aguilar
- Laboratorio de Inmunología, Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Universidad Autónoma de Yucatán, Mérida, Yucatán 97000, Yucatán, Mexico;
| | - Carlos I. Miranda-Caballero
- Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 06720, Mexico; (I.C.C.-G.); (C.I.M.-C.); (E.G.)
| | - Estefania Grostieta
- Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 06720, Mexico; (I.C.C.-G.); (C.I.M.-C.); (E.G.)
| | - Fabián Correa-Morales
- Programa de Enfermedades Transmitidas Por Vectores, Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaría de Salud, Mexico City 11800, Mexico; (F.C.-M.); (R.R.-P.); (F.E.R.-C.); (J.A.R.-A.)
| | - Raquel Romero-Pérez
- Programa de Enfermedades Transmitidas Por Vectores, Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaría de Salud, Mexico City 11800, Mexico; (F.C.-M.); (R.R.-P.); (F.E.R.-C.); (J.A.R.-A.)
| | - Francisco E. Romero-Contreras
- Programa de Enfermedades Transmitidas Por Vectores, Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaría de Salud, Mexico City 11800, Mexico; (F.C.-M.); (R.R.-P.); (F.E.R.-C.); (J.A.R.-A.)
| | - José A. Rodríguez-Atanacio
- Programa de Enfermedades Transmitidas Por Vectores, Centro Nacional de Programas Preventivos y Control de Enfermedades, Secretaría de Salud, Mexico City 11800, Mexico; (F.C.-M.); (R.R.-P.); (F.E.R.-C.); (J.A.R.-A.)
| | - Karina Ruiz-Tovar
- Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos ‘Dr, Manuel Martínez Báez’, Secretaría de Salud, Mexico City 01480, Mexico; (K.R.-T.); (H.H.)
| | - Herón Huerta
- Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos ‘Dr, Manuel Martínez Báez’, Secretaría de Salud, Mexico City 01480, Mexico; (K.R.-T.); (H.H.)
| | - Pedro. C Mis-Avila
- Departamento de Enfermedades Transmitidas por Vector y Zoonosis, Servicios Estatales de Salud de Quintana Roo, Chetumal Quintana Roo 77000, Mexico
| | | | - Miguel A. Lammoglia-Villagómez
- Facultad de Ciencias Biológicas y Agropecuarias, Región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz 92870, Mexico; (M.A.L.-V.); (R.R.-R.)
| | - Selene Blum-Domínguez
- Laboratorio de Enfermedades Tropicales, Centro de Investigaciones Biomédicas de la Universidad Autónoma de Campeche, Campeche 24039, Mexico;
| | - Paulino Tamay-Segovia
- Laboratorio de Enfermedades Transmitidas por Vectores y Zoonosis, Centro de Investigaciones Biomédicas de la Universidad Autónoma de Campeche, Campeche 24039, Mexico;
| | - Rebeca Rojas-Ronquillo
- Facultad de Ciencias Biológicas y Agropecuarias, Región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz 92870, Mexico; (M.A.L.-V.); (R.R.-R.)
| | - Sokani Sánchez-Montes
- Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 06720, Mexico; (I.C.C.-G.); (C.I.M.-C.); (E.G.)
- Facultad de Ciencias Biológicas y Agropecuarias, Región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz 92870, Mexico; (M.A.L.-V.); (R.R.-R.)
| | - Ingeborg Becker
- Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 06720, Mexico; (I.C.C.-G.); (C.I.M.-C.); (E.G.)
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Santos-Luna R, Román-Pérez S, Reyes-Cabrera G, Sánchez-Arcos MDR, Correa-Morales F, Pérez-Solano MA. Web Geographic Information System: A Support Tool for the Study, Evaluation, and Monitoring of Foci of Malaria Transmission in Mexico. Int J Environ Res Public Health 2023; 20:3282. [PMID: 36833980 PMCID: PMC9961844 DOI: 10.3390/ijerph20043282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 02/04/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Malaria is currently an endemic disease in Mexico. The country joined the WHO's E-25 initiative for the elimination of Plasmodium vivax to achieve elimination and certification within the established period. Having a Web-based information system was, therefore, deemed necessary to assist in the detection, investigation, and elimination of transmission in the foci, as well as for the timely treatment of malaria-positive cases. The "Information System for the Elimination of Malaria in Mexico" was designed, developed, and implemented with a geographic vision, which includes a Web tool to georeference homes and aquatic systems, a dashboard and an indicator evaluation card for monitoring activities, notification of probable cases, and vector control among other indicators. The implementation of the system was gradual in the seven states that are currently in the malaria elimination phase; subsequently, the system was implemented in non-transmission states. In 2020, the system implementation stage began; first, the basic data of more than 96,000 homes throughout the country were georeferenced, and then the primary data capture tools of 17 formats, 32 reports, and 2 geographic viewers were enabled for information queries. A total of 56 active foci have been identified in 406 localities as well as 71 residual foci in 320 localities. Recently, the Foci Manager was developed, which is a specific tool for the study, evaluation, and monitoring of active foci through a GIS, a dashboard, and a systematized evaluation certificate. Georeferencing tools decreased the cost of spatial data collection.
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Affiliation(s)
- René Santos-Luna
- Subdirectorate of Medical Geography and Geomatics, National Institute of Public Health, Cuernavaca 62550, Mexico
| | - Susana Román-Pérez
- Subdirectorate of Medical Geography and Geomatics, National Institute of Public Health, Cuernavaca 62550, Mexico
| | - Gerardo Reyes-Cabrera
- Subdirectorate of Vectors, National Center for Preventive Programs and Disease Control, Mexico City 06100, Mexico
| | | | - Fabián Correa-Morales
- Subdirectorate of Vectors, National Center for Preventive Programs and Disease Control, Mexico City 06100, Mexico
| | - Marco Antonio Pérez-Solano
- Subdirectorate of Medical Geography and Geomatics, National Institute of Public Health, Cuernavaca 62550, Mexico
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Ortega-Morales AI, Rodríguez-Martínez LM, Méndez-Alvarado W, Garza-Hernández JA, López-Hernández I, Medrano-Santillana M, González-Acosta C, Correa-Morales F. The Distribution of Uranotaenia sapphirina and Ur. socialis in Tabasco, Southern Mexico. J Am Mosq Control Assoc 2022; 38:141-147. [PMID: 35913763 DOI: 10.2987/22-7064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In Mexico, the genus Uranotaenia includes 11 species distributed mainly in the tropical and subtropical regions in the southeast of the country. Uranotaenia sapphirina has been reported in 18 states in Mexico: Campeche, Coahuila, Colima, Chiapas, Guerrero, Hidalgo, Jalisco, Mexico City, Mexico State, Michoacán, Morelos, Oaxaca, Quintana Roo, Sinaloa, Tabasco, Tamaulipas, Veracruz, and Yucatán; whereas Ur. socialis has been reported in Chiapas and Quintana Roo. In recent surveillance studies of mosquito species in Tabasco, Ur. sapphirina and Ur. socialis were omitted due to the lack of recent collection records, but in historical records, the presence of Ur. sapphirina and one species consistent with the description of Ur. socialis were mentioned. During a mosquito survey collection, immature stages from ground-level natural habitats in conservation areas of Tabasco, Ur. sapphirina and Ur. socialis were collected in association with Anopheles albimanus, Culex erraticus, Mansonia titillans, and Ur. lowii. Additionally, 2 Mexican entomological collections were reviewed, searching additional records of those species. An identification key to separate larvae and adult females of Ur. sapphirina and Ur. socialis is provided. With the addition of Ur. sapphirina and Ur. socialis to the mosquito fauna of Tabasco, there are currently 107 species in the state, being the 3rd state in Mexico with the highest richness of mosquito species. Specimens collected during this study were deposited in the Collection of the Entomological and Bioassay Research Unit of Tabasco.
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Quesada-Cubo V, Damián-González DC, Prado-Velasco FG, Fernández-Santos NA, Sánchez-Tejeda G, Correa-Morales F, Domínguez-Zárate H, García-Orozco A, Saboyá-Díaz MI, Sánchez-Martín MJ. The elimination of trachoma as a public health problem in Mexico: From national health priority to national success story. PLoS Negl Trop Dis 2022; 16:e0010660. [PMID: 36037211 PMCID: PMC9462675 DOI: 10.1371/journal.pntd.0010660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 09/09/2022] [Accepted: 07/13/2022] [Indexed: 11/19/2022] Open
Abstract
Introduction Mexico was the first country in the Americas and the third in the world to eliminate trachoma as a public health problem, as validated by the WHO in 2017. Objective To describe the critical elements that favored the elimination of trachoma as a public health problem in Mexico and the public health impact of this success. Methodology A revision and compilation of data and information contained in the dossier presented by the country to PAHO/WHO to obtain the validation of trachoma elimination as a public health problem was conducted by a group of delegates from the national and local trachoma prevention and control program. Data from the national and local surveillance systems and reports of actions conducted after achieving the elimination goal were also included. Critical elements that favored the achievement of the elimination goal from 1896 to 2019 were extracted. Results Mexico reached the elimination of trachoma in 2016 obtaining the validation in 2017. 264 communities were no longer endemic and 151,744 people were no longer at risk of visual impairment or possible blindness due to trachoma. The key to the success of this elimination process was primarily the local leadership of health authorities with sustained funding for brigades, increased access to potable water and sanitation, and key alliances with indigenous authorities, health authorities, and government institutions that contributed to the achievement of the goal. The SAFE strategy started implementation in Mexico in 2004 as a comprehensive package of interventions. SAFE stands for surgery, antibiotics, facial cleanliness, and improvement of the environmental conditions. These actions impacted drastically on the number of new cases trachmatous trichiasis (TT) and trachomatous inflammation-follicular (TF), which decreased from 1,794 in 2004 to zero in 2016. Conclusions The elimination of trachoma as a public health problem in Mexico is a true success story that may serve as a model example for the elimination of other neglected infectious diseases in the Americas. Trachoma is an eye disease caused by an infection with Chlamydia trachomatis. It is the principal infectious cause of irreversible blindness worldwide and is one of the 20 neglected tropical diseases which is present in 1,338 districts worldwide with an estimated 154.5 million people living in endemic areas. Globally, the disease was earmarked for elimination as a public health problem by the year 2020 and later extended to the year 2030. The WHO elimination strategy SAFE includes Surgery, Antibiotics, Facial cleanliness, and Environmental improvement. This paper describes the SAFE activities implemented and actions taken for Mexico to achieve the elimination of trachoma as a public health problem. From the compilation of national and local data and information, it was possible to identify that local and federal political commitment and leadership, effective coordination across health institutions and critical sectors such as water and sanitation agencies, and consistent communication and health promotion activities that supported the implementation of SAFE strategies were determinant in driving trachoma elimination. The model of coordinated work and collaboration serves as a model example for the elimination of trachoma and other Neglected Infectious Diseases in Latin America.
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Affiliation(s)
| | | | | | - Nadia Angélica Fernández-Santos
- Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Reynosa, Mexico
- Department of Entomology, Texas A&M University, College Station, Texas, United States of America
| | - Gustavo Sánchez-Tejeda
- Vector-Borne Diseases Program, National Center for Disease Control and Preventive Programs (CENAPRECE), Mexico City, Mexico
| | - Fabián Correa-Morales
- Vector-Borne Diseases Program, National Center for Disease Control and Preventive Programs (CENAPRECE), Mexico City, Mexico
| | | | | | - Martha Idalí Saboyá-Díaz
- Department of Communicable Diseases and Environmental Determinants of Health, Pan American Health Organization, Washington, D.C., United States of America
| | - María Jesús Sánchez-Martín
- Department of Communicable Diseases and Health Determinants, Pan American Health Organization, Mexico City, Mexico
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Ortega-Morales AI, Pérez-Rentería C, Ordóñez-Álvarez J, Salazar JA, Dzul-Manzanilla F, Correa-Morales F, Huerta-Jiménez H. Update on the Dispersal of Aedes albopictus in Mexico: 1988–2021. Front Trop Dis 2022. [DOI: 10.3389/fitd.2021.814205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The Asian tiger mosquito Aedes albopictus (Skuse) is one of the most important mosquito species in public health due to the variety of disease-causing viruses that this species can transmit. In Mexico, Ae. albopictus was reported for the first time in 1990 in the state of Tamaulipas, bordering to the state of Texas (USA). Since then, Ae. albopictus has been reported in 15 Mexican states. Currently, this species is present in all tropical and subtropical regions of the country and its presence is common in the states of the Gulf of Mexico and Chiapas. In the present study, the presence of Ae. albopictus is reported in six additional states: Colima, Guanajuato, Jalisco, Puebla, Oaxaca, and Querétaro. The rapid dispersal of Ae. albopictus in Mexico represents a risk to public health, and the surveillance of this species in regions where it has not yet been reported is essential as part of Mexican entomological surveillance programs.
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Mejia-Zuniga MD, Reyes-Moya Á, Tapia-Bueno J, Moncada-Hernandez L, Ortega-Morales A, Moreno-Garcia M, González-Acosta C, Correa-Morales F. First national record of Aedes melanimon (Diptera: Culicidae) in Mexico. J Vector Borne Dis 2022; 59:102-104. [DOI: 10.4103/0972-9062.331418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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10
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Moreno-García M, Espinosa-Gonzalez C, Dávalos-Becerril E, Correa-Morales F, González-Acosta C, López-Bello R, Alvarado-Estrada JM, Esquinca-Calvo L, García-Gutiérrez C, Gómez-Maldonado C, Cuevas-González E, Reyes-Figueroa C. New records of Triatoma huehuetenanguensis in an urban area of Southwest Mexico. J Vector Borne Dis 2022; 59:86-90. [DOI: 10.4103/0972-9062.331410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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11
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Che-Mendoza A, González-Olvera G, Medina-Barreiro A, Arisqueta-Chablé C, Bibiano-Marin W, Correa-Morales F, Kirstein OD, Manrique-Saide P, Vazquez-Prokopec GM. Efficacy of targeted indoor residual spraying with the pyrrole insecticide chlorfenapyr against pyrethroid-resistant Aedes aegypti. PLoS Negl Trop Dis 2021; 15:e0009822. [PMID: 34606519 PMCID: PMC8516273 DOI: 10.1371/journal.pntd.0009822] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/14/2021] [Revised: 10/14/2021] [Accepted: 09/19/2021] [Indexed: 11/18/2022] Open
Abstract
Background There is an increased need to mitigate the emergence of insecticide resistance and incorporate new formulations and modes of application to control the urban vector Aedes aegypti. Most research and development of insecticide formulations for the control of Ae. aegypti has focused on their peridomestic use as truck-mounted ULV-sprays or thermal fogs despite the widespread knowledge that most resting Ae. aegypti are found indoors. A recent modification of indoor residual spraying (IRS), termed targeted IRS (TIRS) works by restricting applications to 1.5 m down to the floor and on key Ae. aegypti resting sites (under furniture). TIRS also opens the possibility of evaluating novel residual insecticide formulations currently being developed for malaria IRS. Methods We evaluated the residual efficacy of chlorfenapyr, formulated as Sylando 240SC, for 12 months on free-flying field-derived pyrethroid-resistant Ae. aegypti using a novel experimental house design in Merida, Mexico. On a monthly basis, 600 female Ae. aegypti were released into the houses and left indoors with access to sugar solution for 24 hours. After the exposure period, dead and alive mosquitoes were counted in houses treated with chlorfenapyr as well as untreated control houses to calculate 24-h mortality. An evaluation for these exposed cohorts of surviving mosquitoes was extended up to seven days under laboratory conditions to quantify “delayed mortality”. Results Mean acute (24-h) mortality of pyrethroid-resistant Ae. aegypti ranged 80–97% over 5 months, dropping below 30% after 7 months post-TIRS. If delayed mortality was considered (quantifying mosquito mortality up to 7 days after exposure), residual efficacy was above 90% for up to 7 months post-TIRS application. Generalized Additive Mixed Models quantified a residual efficacy of chlorfenapyr of 225 days (ca. 7.5 months). Conclusions Chlorfenapyr represents a new option for TIRS control of Ae. aegypti in urban areas, providing a highly-effective time of protection against indoor Ae. aegypti females of up to 7 months. Vector control (VC) for managing Aedes aegypti and reducing transmission of Aedes-borne diseases is largely focused on peridomestic insecticide applications. However, the indoor resting behavior of Ae. aegypti and the acceleration of insecticide resistance owed to reduced modes of action have diminished the effectiveness of many VC tools. A targeted Indoor residual spraying (TIRS) modality in experimental housing units was employed to investigate the potential of chlorfenapyr, a pyrrole-class insecticide with known effectiveness to resistant mosquito species. This was the first investigation for chlorfenapyr use against locally resistant Ae. aegypti (Merida, Mexico) with this approach. Two treatment arms were investigated in the present study: TIRS and a control house where only water was sprayed. A comparison of entomological efficacy for TIRS applied to interior perimeter walls below 1.5 m with chlorfenapyr (formulated as Sylando 240SC) at 250 mg/m2 over 12 months was assessed. TIRS chlorfenapyr treatments were highly efficacious and led to acute mortalities (after 24 exposure) above 80% up to 5 months; delayed mortalities (to Ae. aegypti) were monitored over seven days post exposures vs untreated controls. When delayed mortality was considered, residual efficacy of chlorfenapyr extended to 7 months. These data provide evidence that TIRS chlorfenapyr is an effective Aedes management tool that surpassed efficacy profiles for other TIRS insecticides that have been previously reported with this method. Further, Chlorfenapyr emerges as a novel addition to Ae. aegypti VC, and future studies should focus on its effectiveness and residual power as part of Phase II-III TIRS trials.
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Affiliation(s)
- Azael Che-Mendoza
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Gabriela González-Olvera
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Anuar Medina-Barreiro
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Carlos Arisqueta-Chablé
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Wilberth Bibiano-Marin
- Unidad Colaborativa para Bioensayos Entomologicos, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE) Secretaria de Salud Mexico, Ciudad de Mexico, Mexico
| | - Oscar D. Kirstein
- 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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Gómez-Rivera ÁS, Chan-Chablé RJ, Canto-Mis KL, Mis-Ávila PC, Correa-Morales F, Manrique-Saide P. New Distribution Records of Anopheles darlingi in Quintana Roo, Southeastern Mexico. J Am Mosq Control Assoc 2021; 37:175-178. [PMID: 34407162 DOI: 10.2987/21-7010.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Anopheles darlingi is considered the main vector of malaria in the Neotropical region, so knowledge of its distribution in the Americas is highly relevant for the design of strategies for prevention and control of the illness. In Mexico, An. darlingi was recorded for the first time in 1943, and currently its distribution covers the states of Campeche, Chiapas, Quintana Roo, and Tabasco. In this study, new distribution data and observations of the abundance of An. darlingi in 14 localities of Quintana Roo, southeastern Mexico, are presented.
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13
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Dzul-Manzanilla F, Correa-Morales F, Che-Mendoza A, Palacio-Vargas J, Sánchez-Tejeda G, González-Roldan JF, López-Gatell H, Flores-Suárez AE, Gómez-Dantes H, Coelho GE, da Silva Bezerra HS, Pavia-Ruz N, Lenhart A, Manrique-Saide P, Vazquez-Prokopec GM. Identifying urban hotspots of dengue, chikungunya, and Zika transmission in Mexico to support risk stratification efforts: a spatial analysis. Lancet Planet Health 2021; 5:e277-e285. [PMID: 33964237 PMCID: PMC8114339 DOI: 10.1016/s2542-5196(21)00030-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 05/12/2023]
Abstract
BACKGROUND Effective Aedes aegypti control is limited, in part, by the difficulty in achieving sufficient intervention coverage. To maximise the effect of vector control, areas with persistently high numbers of Aedes-borne disease cases could be identified and prioritised for preventive interventions. We aimed to identify persistent Aedes-borne disease hotspots in cities across southern Mexico. METHODS In this spatial analysis, geocoded cases of dengue, chikungunya, and Zika from nine endemic Mexican cities were aggregated at the census-tract level. We included cities that were located in southern Mexico (the arbovirus endemic region of Mexico), with a high burden of dengue cases (ie, more than 5000 cases reported during a 10-year period), and listed as high priority for the Mexican dengue control and prevention programme. The Getis-Ord Gi*(d) statistic was applied to yearly slices of the dataset to identify spatial hotspots of each disease in each city. We used Kendall's W coefficient to quantify the agreement in the distribution of each virus. FINDINGS 128 507 dengue, 4752 chikungunya and 25 755 Zika clinical cases were reported between Jan 1, 2008, and Dec 31, 2016. All cities showed evidence of transmission heterogeneity, with a mean of 17·6% (SD 4·7) of their total area identified as persistent disease hotspots. Hotspots accounted for 25·6% (SD 9·7; range 12·8-43·0) of the population and 32·1% (10·5; 19·6-50·5) of all Aedes-borne disease cases reported. We found an overlap between hotspots of 61·7% for dengue and Zika and 53·3% for dengue and chikungunya. Dengue hotspots in 2008-16 were significantly associated with dengue hotspots detected during 2017-20 in five of the nine cities. Heads of vector control confirmed hotspot areas as problem zones for arbovirus transmission. INTERPRETATION This study provides evidence of the overlap of Aedes-borne diseases within geographical hotspots and a methodological framework for the stratification of arbovirus transmission risk within urban areas, which can guide the implementation of surveillance and vector control. FUNDING USAID, the US Centers for Disease Control and Prevention, the Canadian Institutes of Health Research, International Development Research Centre, Fondo Mixto CONACyT (Mexico)-Gobierno del Estado de Yucatan, and the US National Institutes of Health. TRANSLATION For the Spanish translation of the abstract see Supplementary Materials section.
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Affiliation(s)
- Felipe Dzul-Manzanilla
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Ministry of Health, Mexico
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Ministry of Health, Mexico
| | - Azael Che-Mendoza
- Collaborative Unit for Entomological Bioassays (UCBE), Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | | | - Gustavo Sánchez-Tejeda
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Ministry of Health, Mexico
| | | | - Hugo López-Gatell
- Subsecretaria de Prevencion y Promocion de la Salud, Mexico City, Mexico
| | - Adriana E Flores-Suárez
- Facultad de Ciencias Biologicas Universidad Autónoma de Nuevo Leon, San Nicolas de los Garza, Nuevo Leon, Mexico
| | - Hector Gómez-Dantes
- Health Systems Research Center, National Institute of Public Health, Cuernavaca, Mexico
| | - Giovanini E Coelho
- Pan American Health Organization (PAHO), Department of Communicable Diseases and Environmental Determinants of Health, Washington DC, USA
| | - Haroldo S da Silva Bezerra
- Pan American Health Organization (PAHO), Department of Communicable Diseases and Environmental Determinants of Health, Washington DC, USA
| | - Norma Pavia-Ruz
- Centro de Investigaciones Regionales Hideyo Noguchi, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
| | - Audrey Lenhart
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Pablo Manrique-Saide
- Collaborative Unit for Entomological Bioassays (UCBE), Campus de Ciencias Biologicas y Agropecuarias, Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico
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Mejía-Guevara MD, Correa-Morales F, González-Acosta C, Dávalos-Becerril E, Peralta-Rodríguez JL, Martínez-Gaona A, Hernández-Nava M, Ramírez-Huicochea C, Rosas-Trinidad L, Carmona-Pérez M, Salazar-Bueyes V, Tapia-Olarte F, Moreno-García M. Aedes aegypti, the dengue fever mosquito in Mexico City. Early invasion and its potential risks. GAC MED MEX 2020; 156:382-389. [PMID: 33372934 DOI: 10.24875/gmm.m20000425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction Mexico City has no endemic presence of Aedes aegypti, and it is therefore free of vector-borne diseases, such as dengue fever, Zika and chikungunya. However, evidence has shown the presence of Aedes aegypti eggs in the city since 2015. Objective To report the constant and increasing presence of Aedes aegypti eggs in Mexico City from 2015 to 2018. Methods Surveillance was carried out using ovitraps. Eggs were counted and hatched in order to determine the species. Results From 2015 to 2018, 378 organisms were identified as Ae. aegypti. In total, 76 Aedes aegypti-positive ovitraps were collected at 50 different places in 11 boroughs of the city. Northeastern Mexico City was the area with the highest number of positive traps. Conclusions The results may be indicating a period of early colonization and the probable existence of cryptic colonies of the mosquito; Mexico City could be at risk of experiencing vector-borne epidemics.
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Affiliation(s)
- María D Mejía-Guevara
- Sub-directorate of Epidemiology Surveillance and Evaluation. Mexico City Health Services, Mexico City. Mexico
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City. Mexico
| | | | | | - Jorge L Peralta-Rodríguez
- Entomologic Research and Bioassay Unit, Panchimalco Regional Vector Control Center, Morelos Health Services, Morelos. Mexico
| | - Andrés Martínez-Gaona
- Entomologic Research and Bioassay Unit, Panchimalco Regional Vector Control Center, Morelos Health Services, Morelos. Mexico
| | - Mariela Hernández-Nava
- Entomologic Research and Bioassay Unit, Panchimalco Regional Vector Control Center, Morelos Health Services, Morelos. Mexico
| | - Carlos Ramírez-Huicochea
- Entomologic Research and Bioassay Unit, Panchimalco Regional Vector Control Center, Morelos Health Services, Morelos. Mexico
| | - Leopoldo Rosas-Trinidad
- Entomologic Research and Bioassay Unit, Panchimalco Regional Vector Control Center, Morelos Health Services, Morelos. Mexico
| | - Mariana Carmona-Pérez
- Vector-Borne Diseases and Zoonosis Coordination, Morelos Health Services, Morelos. Mexico
| | - Víctor Salazar-Bueyes
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City. Mexico
| | - Fernando Tapia-Olarte
- Sub-directorate of Epidemiology Surveillance and Evaluation. Mexico City Health Services, Mexico City. Mexico
| | - Miguel Moreno-García
- Entomologic Research and Bioassay Unit, Panchimalco Regional Vector Control Center, Morelos Health Services, Morelos. Mexico
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Mejía-Guevara MD, Correa-Morales F, González-Acosta C, Dávalos-Becerril E, Peralta-Rodríguez JL, Martínez-Gaona A, Hernández-Nava M, Ramírez-Huicochea C, Rosas-Trinidad L, Carmona-Pérez M, Salazar-Bueyes V, Tapia-Olarte F, Moreno-García M. El mosquito del dengue en la Ciudad de México. Invasión incipiente de Aedes aegypti y sus potenciales riesgos. GAC MED MEX 2020. [DOI: 10.24875/gmm.20000009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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16
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Hernández-Guevara LF, Sánchez-Rámos FJ, Chan-Chable RJ, Hernández-Triana LM, Valdés-Perezgasga MT, González-Acosta C, Correa-Morales F. First Record of Mansonia dyari in the State of Morelos, Mexico, Based on Morphology and COI DNA Barcoding. J Am Mosq Control Assoc 2020; 36:33-36. [PMID: 32497482 DOI: 10.2987/19-6909.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Collections of mosquitoes were conducted for the surveillance of species of medical importance in the state of Morelos, Mexico, in June 2017. Species collected included Mansonia (Mansonia) dyari, which was identified using morphological characters and cytochrome c oxidase I DNA barcoding. Although 3 species of genus Mansonia have been previously reported in Mexico, this is the 1st confirmed record of Ma. dyari in Morelos State, where no Mansonia species had been recorded. Historical records of Ma. dyari and Ma. indubitans in Mexico were reviewed. Therefore, this record increases the number of mosquito species occurring in Morelos to 46. The specimens collected in this study were deposited in the Culicidae collection of the Universidad Autónoma Agraria Antonio Narro, Unidad Laguna.
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Sánchez-Casiano N, Cime-Castillo J, Ovilla-Muñoz M, Ramírez-Arroyo J, González-Acosta C, Moreno-García M, Correa-Morales F, Pando-Robles V. Experimental infection and vector competence of Zika virus in Aedes aegypti mosquitoes from Acapulco, Guerrero, Mexico. ACTA ACUST UNITED AC 2020; 62:203-210. [DOI: 10.21149/10835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/25/2019] [Indexed: 11/06/2022]
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18
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Correa-Morales F, González-Acosta C, Mejía-Zúñiga D, Huerta H, Pérez-Rentería C, Vazquez-Pichardo M, Ortega-Morales AI, Hernández-Triana LM, Salazar-Bueyes VM, Moreno-García M. Surveillance for Zika in Mexico: naturally infected mosquitoes in urban and semi-urban areas. Pathog Glob Health 2020; 113:309-314. [PMID: 31902313 DOI: 10.1080/20477724.2019.1706291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Zika cases have been reported in 29 out of the 32 states of Mexico. Information regarding which mosquito species might be driving Zika virus transmission/maintenance in nature must be regularly updated. From January 2017 to November 2018, mosquitoes were collected indoors and outdoors using the CDC backpack aspirator in urban and semi-urban areas with evidence of mosquito-borne disease transmission. 3873 mosquito pools were tested for Zika infection using the CDC Trioplex real-time RT-PCR. For each collected specie, maximum likelihood estimator of infection rate (MLE) was estimated. Results showed 492 mosquito pools positive for Zika virus RNA. The majority of the positive pools were Aedes (Stegomyia) aegypti (Linnaeus) (54.6%, MLE = 19) (males and females) and Culex (Culex) quinquefasciatus (Say) (19.5%, MLE = 16.8). For the first time, ZIKV infection was detected in Ae. (Georgecraigius) epactius (Dyar and Knab) (MLE = 17.1), Cx. (Melanoconion) erraticus (Dyar and Knab) (MLE = non-estimable), Culiseta (Culiseta) inornata (Williston) (MLE = non estimable), and Cs (Cs.) particeps (Adams) (MLE = 369.5). Other detected species were: Ae. (Stg.) albopictus (Skuse) (MLE = 90.5), Cx. (Cx.) coronator s.l. (Dyar and Knab) (MLE = 102.8) and Cx. (Cx.) tarsalis (Coquillett) (MLE = 117.2). However, our results do not allow for the incrimination of these species as vectors of ZIKV. Routine surveillance should start to consider other mosquito species across the taxonomic spectrum of the Culicidae.
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Affiliation(s)
- Fabián Correa-Morales
- Subdirección del Programa de Enfermedades Transmitidas por Vectores, Centro Nacional de Programas Preventivos y Control de Enfermedades, Ciudad de México, México
| | - Cassandra González-Acosta
- Coordinación de Enfermedades Transmitidas por Vector y Zoonosis, Servicios de Salud de Morelos, Cuernavaca, México
| | - David Mejía-Zúñiga
- Unidad de Investigación Entomológica y Bioensayos-Servicios de Salud de Chihuahua, Chihuahua, México
| | - Herón Huerta
- Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez', Ciudad de México, México
| | - Crescencio Pérez-Rentería
- Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez', Ciudad de México, México
| | - Mauricio Vazquez-Pichardo
- Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez', Ciudad de México, México
| | - Aldo I Ortega-Morales
- Departamento de Parasitología, Universidad Autónoma Agraria Antonio Narro Unidad Laguna, Torreón, México
| | - Luis M Hernández-Triana
- Animal and Plant Health Agency, Virology Department, Wildlife Zoonoses and Vector-Borne Diseases Research Group, Addlestone, UK
| | - Víctor M Salazar-Bueyes
- Subdirección del Programa de Enfermedades Transmitidas por Vectores, Centro Nacional de Programas Preventivos y Control de Enfermedades, Ciudad de México, México
| | - Miguel Moreno-García
- Unidad de Investigación Entomológica y Bioensayos-Centro Regional de Control de Vectores Panchimalco-Servicios de Salud de Morelos, Jojutla, México
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González-Acosta C, Correa-Morales F, Canche-Aguilar I, Silva-Domínguez R, Salgado-Alonzo MC, Muñoz-Urias R, Salazar-Bueyes VM, Moreno-García M. First Report of Aedes albopictus in Guerrero State, Mexico. J Am Mosq Control Assoc 2019; 35:285-287. [PMID: 31922941 DOI: 10.2987/19-6829.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In 1988, Aedes albopictus was first described in Mexico. Since then, it has been recorded in most of the coastal states that have a shoreline on the Gulf of Mexico, 3 states in Central Mexico and 2 states on the coast of the Pacific Ocean. This is the first report documenting the presence of this invasive species in Guerrero, a state with coastlines on the Pacific Ocean. This evidence suggests that the distribution of Ae. albopictus is expanding throughout Mexico. It remains unknown the extent to which Ae. albopictus contributes to vector-borne disease transmission in this country; however, the risk should not be neglected.
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Correa-Morales F, Dzul-Manzanilla F, Bibiano-Marín W, Vadillo-Sánchez J, Medina-Barreiro A, Martin-Park A, Villegas-Chim J, Elizondo-Quiroga AE, Lenhart A, Vazquez-Prokopec GM, Erales-Villamil J, Che-Mendoza A, Manrique-Saide P. Entomological Efficacy of Aerial Ultra-Low Volume Insecticide Applications Against Aedes aegypti (Diptera: Culicidae) in Mexico. J Med Entomol 2019; 56:1331-1337. [PMID: 31120502 PMCID: PMC6736365 DOI: 10.1093/jme/tjz066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Indexed: 06/09/2023]
Abstract
A cluster-randomized controlled trial quantified the entomological efficacy of aerial ultra-low volume (AULV) applications of the insecticide chlorpyrifos against Aedes aegypti in Puerto Vallarta, México, during November-October 2017. The trial involved 16 large (1 × 1 km) clusters distributed between treatment-control arms. Primary endpoint was the abundance of Ae. aegypti indoors (total adults, females, and blood-fed females) collected using Prokopack aspirators. After four consecutive weekly cycles of AULV, all adult Ae. aegypti infestation indices were significantly lower in the treatment arm (OR and IRR ≤ 0.28). Efficacy in reducing indoor Ae. aegypti increased with each weekly application cycle from 30 to 73% (total adults), 33 to 76% (females), and 45.5 to 89% (blood-fed females). Entomological indices remained significantly lower in the treatment arm up to 2 wk after the fourth spraying round. Performing AULV spraying can have significant and lasting entomological impact on Ae. aegypti as long as multiple (ideally four) spray cycles are implemented using an effective insecticide.
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Affiliation(s)
- Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE) Secretaría de Salud Mexico, CDMX, Mexico
| | - Felipe Dzul-Manzanilla
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE) Secretaría de Salud Mexico, CDMX, Mexico
| | - Wilbert Bibiano-Marín
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
| | - José Vadillo-Sánchez
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
| | - Anuar Medina-Barreiro
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
| | - Abdiel Martin-Park
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
| | - Josué Villegas-Chim
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
| | | | - Audrey Lenhart
- Centers for Disease Control and Prevention, Center for Global Health/Division of Parasitic Diseases and Malaria/Entomology Branch, Atlanta, GA
| | | | - José Erales-Villamil
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
| | - Azael Che-Mendoza
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
| | - Pablo Manrique-Saide
- Collaborative Unit for Entomological Bioassays, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatan. Merida, Yucatan, Mexico
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Duarte-Andrade M, Vázquez-Marroquín R, Chan-Chablé RJ, Siller-Rodríguez QK, Sánchez-Rámos FJ, Valdés-Perezgasga MT, González-Acosta C, Correa-Morales F, Ortega-Morales AI. First Record of Psorophora ferox In Durango State, Mexico. J Am Mosq Control Assoc 2019; 35:217-219. [PMID: 31647711 DOI: 10.2987/19-6822.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
During August-November of 2018, mosquito collections were conducted with the intention of monitoring the presence of arboviruses in Durango State, Mexico. Species collected included Psorophora (Janthinosoma) ferox. In Mexico, 24 species of the genus Psorophora have been previously reported, whereas in the state of Durango, only 2 species have been reported: Psorophora (Grabhamia) columbiae and Ps. (Gra.) signipennis. This is the 1st record of Ps. ferox and the subgenus Janthinosoma in Durango. With the addition of Ps. ferox to the list of mosquito species found in Durango, the number of mosquito species occurring in the state stands at 31.
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Izquierdo-Suzán M, Zárate S, Torres-Flores J, Correa-Morales F, González-Acosta C, Sevilla-Reyes EE, Lira R, Alcaraz-Estrada SL, Yocupicio-Monroy M. Natural Vertical Transmission of Zika Virus in Larval Aedes aegypti Populations, Morelos, Mexico. Emerg Infect Dis 2019; 25:1477-1484. [PMID: 31310224 PMCID: PMC6649329 DOI: 10.3201/eid2508.181533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
We characterized natural vertical transmission of Zika virus in pools of Aedes aegypti larvae hatched from eggs collected in Jojutla, Morelos, Mexico. Of the 151 pools analyzed, 17 tested positive for Zika virus RNA; infectious Zika virus was successfully isolated from 1 of the larvae pools (31N) in C6/36 cells. Real-time quantitative PCR and indirect immunofluorescence assays confirmed the identity of the isolate, named Zika virus isolate 31N; plaque assays in Vero cells demonstrated the isolate's infectivity in a mammalian cell line. We obtained the complete genome of Zika virus isolate 31N by next-generation sequencing and identified 3 single-nucleotide variants specific to Zika virus isolate 31N using the meta-CATS tool. These results demonstrate the occurrence of natural vertical transmission of Zika virus in wild Ae. aegypti mosquitoes and suggest that this transmission mode could aid in the spread and maintenance of Zika virus in nature.
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23
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Dávalos-Becerril E, Correa-Morales F, González-Acosta C, Santos-Luna R, Peralta-Rodríguez J, Pérez-Rentería C, Ordoñez-Álvarez J, Huerta H, Carmona-Perez M, Díaz-Quiñonez JA, Mejía-Guevara MD, Sánchez-Tejeda G, Kuri-Morales P, González-Roldán JF, Moreno-García M. Urban and semi-urban mosquitoes of Mexico City: A risk for endemic mosquito-borne disease transmission. PLoS One 2019; 14:e0212987. [PMID: 30840661 PMCID: PMC6402764 DOI: 10.1371/journal.pone.0212987] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 02/13/2019] [Indexed: 01/08/2023] Open
Abstract
Since past century, vector-borne diseases have been a major public health concern in several states of Mexico. However, Mexico City continues to be free of endemic mosquito-borne viral diseases. The city is the most important politic and economic state of Mexico and one of the most important city of Latin America. Its subtropical highland climate and high elevation (2240 masl) had historically made the occurrence of Aedes species unlikely. However, the presence of other potential disease vectors (Culex spp, Culiseta spp), and the current intermittent introductions of Aedes aegypti, have revealed that control programs must adopt routine vector surveillance in the city. In this study, we provide an updated species list from a five-years of vector surveillance performed in Mexico City. A total of 18,553 mosquito larvae were collected. Twenty-two species from genus Culex, Aedes, Culiseta, Anopheles, Lutzia and Uranotaenia were observed. Nine new mosquito records for the city were found. Ae. albopictus was recorded for the first time in Mexico City. Interestingly, a new record, Ae. epactius was the most frequent species reported. Cx. pipiens quinquefasciatus exhibited the highest number of individuals collected. We detected six areas which harbor the highest mosquito species records in the city. Cemeteries included 68.9% of our collection sites. Temporarily ponds showed the highest species diversity. We detected an increasing presence of Ae. aegypti, which was detected for three consecutive years (2015–2017), predominantly in the warmer microclimates of the city. We found a possible correlation between increasing temperature and Ae. aegypti and Ae. albopictus expanding range. This study provides a starting point for developing strategies related to environmental management for mosquito control. The promotion of mosquito control practices through community participation, mass media and education programmes in schools should be introduced in the city.
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Affiliation(s)
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | | | - Rene Santos-Luna
- Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Jorge Peralta-Rodríguez
- Unidad de Bioensayos-Centro Regional de Control de Vectores Panchimalco-Servicios de Salud de Morelos, Morelos, Mexico
| | - Crescencio Pérez-Rentería
- Instituto de Diagnóstico y Referencia Epidemiológicos “Dr. Manuel Martínez Báez”, México City, México
| | - José Ordoñez-Álvarez
- Instituto de Diagnóstico y Referencia Epidemiológicos “Dr. Manuel Martínez Báez”, México City, México
| | - Herón Huerta
- Instituto de Diagnóstico y Referencia Epidemiológicos “Dr. Manuel Martínez Báez”, México City, México
| | | | | | | | | | | | | | - Miguel Moreno-García
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
- Unidad de Bioensayos-Centro Regional de Control de Vectores Panchimalco-Servicios de Salud de Morelos, Morelos, Mexico
- * E-mail:
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24
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Ortega-Morales AI, Pérez-Paredes MG, Siller-Rodríguez QK, Moreno-García M, González-Acosta C, Correa-Morales F. First Record of Aedes gabriel in Hidalgo State, Mexico. J Am Mosq Control Assoc 2019; 35:51-54. [PMID: 31442184 DOI: 10.2987/18-6787.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Aedesgabriel is one of the rare species endemic in Mexico. This species was originally described from specimens collected in the state of Morelos in 1970; however, very few occurrence records have been published since. During an ovitrap survey of mosquitoes in 2018, eggs of Ae. gabriel were collected for the 1st time in the state of Hidalgo, Mexico. Aedes gabriel appears to have become common and the species is frequently found in ovitraps, and often confused with other common species of Aedes, such as Ae. epactius, Ae. podographicus, Ae. aegypti, and Ae. albopictus. Females of Ae. gabriel are highly anthropophagous and persistent biters in wild habits during the rainy season. Although the medical importance of Ae. gabriel is unknown, its biting habitats and increasing abundance indicate that the potential importance of this species should not be neglected by the public health officials of Mexico.
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25
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Huerta H, González-Roldán JF, Sánchez-Tejeda G, Correa-Morales F, Romero-Contreras FE, Cárdenas-Flores R, Rangel-Martínez ML, Mata-Rivera JM, Siller-Martínez JDJ, Vazquez-Prokopec GM, Manrique-Saide P, Dzul-Manzanilla F, Vázquez-Pichardo M, Rosales-Jiménez C, Torres-Rodríguez MDLL, Núñez-León A, Torres-Longoria B, López-Martínez I, Ruíz-Matus C, Kuri-Morales PA, Díaz-Quiñónez JA. Detection of Zika virus in Aedes mosquitoes from Mexico. Trans R Soc Trop Med Hyg 2018; 111:328-331. [PMID: 29232453 DOI: 10.1093/trstmh/trx056] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 08/31/2017] [Indexed: 11/14/2022] Open
Abstract
Background We report on the results of an entomovirological surveillance system of Aedes populations performed by the Ministry of Health of the central state of San Luis Potosí, Mexico. Methods Indoor adult Aedes aegypti and Aedes albopictus pools collected at San Martín, Tamazunchale, Ciudad Valles, Metlapa, Ebano, Tamuin and Axtla during the dry season of 2016 were examined for the presence of dengue (DENV), chikungunya (CHIKV) and Zika (ZIKV) viruses using real-time PCR. Results Both Ae. aegypti and Ae. albopictus were found to be infected with ZIKV in the absence of confirmed symptomatic human cases. Conclusions The entomovirological surveillance system analysed here identified both Ae. aegypti and Ae. albopictus infected with ZIKV which triggered an immediate aggressive vector control campaign.
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Affiliation(s)
- Herón Huerta
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - Jesús Felipe González-Roldán
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Benjamín Franklin No. 132, Col. Escandón, Delegación Miguel Hidalgo, Ciudad de México, CP, Mexico
| | - Gustavo Sánchez-Tejeda
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Benjamín Franklin No. 132, Col. Escandón, Delegación Miguel Hidalgo, Ciudad de México, CP, Mexico
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Benjamín Franklin No. 132, Col. Escandón, Delegación Miguel Hidalgo, Ciudad de México, CP, Mexico
| | - Francisco Eduardo Romero-Contreras
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Benjamín Franklin No. 132, Col. Escandón, Delegación Miguel Hidalgo, Ciudad de México, CP, Mexico
| | - Raúl Cárdenas-Flores
- Servicios de Salud de San Luis Potosí, Prolongación Calzada de Guadalupe No. 5850, Col. Lomas de la Virgen, San Luis Potosí, CP, México
| | - Mónica Liliana Rangel-Martínez
- Servicios de Salud de San Luis Potosí, Prolongación Calzada de Guadalupe No. 5850, Col. Lomas de la Virgen, San Luis Potosí, CP, México
| | - Juan Manuel Mata-Rivera
- Servicios de Salud de San Luis Potosí, Prolongación Calzada de Guadalupe No. 5850, Col. Lomas de la Virgen, San Luis Potosí, CP, México
| | - José de Jesús Siller-Martínez
- Servicios de Salud de San Luis Potosí, Prolongación Calzada de Guadalupe No. 5850, Col. Lomas de la Virgen, San Luis Potosí, CP, México
| | | | - Pablo Manrique-Saide
- Unidad Colaborativa de Bioensayos Entomológicos, Departamento de Zoología, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Km. 15.5 Carr. Mérida-Xmatkuil s.n., Mérida, Yucatán, CP, Mexico
| | - Felipe Dzul-Manzanilla
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Benjamín Franklin No. 132, Col. Escandón, Delegación Miguel Hidalgo, Ciudad de México, CP, Mexico
| | - Mauricio Vázquez-Pichardo
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - Claudia Rosales-Jiménez
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - María de la Luz Torres-Rodríguez
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - Alma Núñez-León
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - Belem Torres-Longoria
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - Irma López-Martínez
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - Cuitláhuac Ruíz-Matus
- Dirección General de Epidemiología (DGE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico
| | - Pablo Antonio Kuri-Morales
- Subsecretaría de Prevención y Promoción de la Salud, Secretaria de Salud, Lieja No. 7, Col. Juárez, Delegación Cuauhtémoc, Ciudad de México, CP.,División de Estudios de Posgrado, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Circuito Interior Ciudad Universitaria, Avenida Universidad 3000, CP, México
| | - José Alberto Díaz-Quiñónez
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, Ciudad de México, CP, Mexico.,División de Estudios de Posgrado, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Circuito Interior Ciudad Universitaria, Avenida Universidad 3000, CP, México
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26
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Kuri-Morales PA, Correa-Morales F, González-Acosta C, Moreno-Garcia M, Santos-Luna R, Román-Pérez S, Salazar-Penagos F, Lombera-González M, Sánchez-Tejeda G, González-Roldán JF. Insecticide susceptibility status in Mexican populations of Stegomyia aegypti (= Aedes aegypti): a nationwide assessment. Med Vet Entomol 2018; 32:162-174. [PMID: 29165810 DOI: 10.1111/mve.12281] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/22/2017] [Accepted: 10/18/2017] [Indexed: 06/07/2023]
Abstract
In Mexico, mosquito vector-borne diseases are of public health concern as a result of their impact on human morbidity and mortality. The use of insecticides against adult mosquitoes is one of the most common ways of controlling mosquito population densities. However, the use of these compounds has resulted in the development of insecticide resistance. The aim of this study was to estimate susceptibility to six pyrethroids, two carbamates and two organophosphates in Mexican populations of Stegomyia aegypti (Linnaeus, 1762) (= Aedes aegypti) (Diptera: Culicidae) mosquitoes. Bottle insecticide susceptibility tests, with 1 h exposure, were performed on adult mosquitoes from 75 localities across 28 states. At 30 min of exposure, the proportion of fallen mosquitoes was recorded. After 60 min of exposure, mosquitoes were recovered in non-treated containers and mortality was determined at 24 h after the set-up of the experiment. In general, the carbamate insecticides represented the most effective group in terms of the proportion of mosquitoes fallen at 30 min (72-100%) and 24-h mortality (97-100%). High and widespread resistance to pyrethroids Types I and II and, to a lesser extent, to organophosphates was observed. Insecticide susceptibility among and within states was highly variable.
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Affiliation(s)
| | - F Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | - C González-Acosta
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | - M Moreno-Garcia
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
- Unidad de Bioensayo, Centro Regional de Control de Vectores Panchimalco, Servicios de Salud de Morelos, Morelos, Mexico
| | - R Santos-Luna
- Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - S Román-Pérez
- Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | | | | | - G Sánchez-Tejeda
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | - J F González-Roldán
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
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27
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Kuri-Morales PA, Correa-Morales F, González-Acosta C, Moreno-Garcia M, Dávalos-Becerril E, Benitez-Alva JI, Peralta-Rodriguez J, Salazar-Bueyes V, González-Roldán JF. Efficacy of 13 Commercial Household Aerosol Insecticides Against Aedes aegypti (Diptera: Culicidae) From Morelos, Mexico. J Med Entomol 2018; 55:417-422. [PMID: 29228197 DOI: 10.1093/jme/tjx212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In Mexico, Aedes aegypti (L.) (Diptera: Culicidae) is the primary vector of Dengue, Zika, and Chikungunya viruses. Control programs include community participation using personal protection such as household aerosol insecticides. In both, urban or rural areas, the use of aerosol insecticides is a common practice to avoiding mosquito biting. Thus, information on the efficacy of commercial products must be available. This study reports the efficacy of 13 household aerosol insecticides against Ae. aegypti from an endemic dengue area in Mexico. To test each insecticide, six netting cages, containing 10 non-blood fed female mosquitoes each one, were placed in different locations inside a bedroom. Readings at 30 min and 24 h after exposure were recorded. No products showed 100% mortality after 30 min of exposure. Only three products killed the 100% of the individuals 24 h after exposure. Results showed a high mortality variance among insecticides. Location in the room also impacts the insecticide efficacy. Mosquitoes located inside cabinets or with behind an obstacle (preventing an accurate insecticide exposure) showed lower mortalities. Products and spraying methods could and should be improved.
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Affiliation(s)
| | | | | | - Miguel Moreno-Garcia
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico
- Unidad de Bioensayo-Centro Regional de Control de Vectores Panchimalco, Servicios de Salud de Morelos, Mexico
| | | | | | - Jorge Peralta-Rodriguez
- Unidad de Bioensayo-Centro Regional de Control de Vectores Panchimalco, Servicios de Salud de Morelos, Mexico
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28
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Yañez-Arenas C, Rioja-Nieto R, Martín GA, Dzul-Manzanilla F, Chiappa-Carrara X, Buenfil-Ávila A, Manrique-Saide P, Correa-Morales F, Díaz-Quiñónez JA, Pérez-Rentería C, Ordoñez-Álvarez J, Vazquez-Prokopec G, Huerta H. Characterizing environmental suitability of Aedes albopictus (Diptera: Culicidae) in Mexico based on regional and global niche models. J Med Entomol 2018; 55:69-77. [PMID: 29186544 DOI: 10.1093/jme/tjx185] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The Asian tiger mosquito, Aedes albopictus (Skuse) (Diptera: Culicidae), is an invasive species and a vector of numerous human pathogens, including chikungunya, dengue, yellow fever, and Zika viruses. This mosquito had been reported from 36 geographic locations in Mexico by 2005, increasing to 101 locations by 2010 and 501 locations (spanning 16 states) by 2016. Here we modeled the occupied niche for Ae. albopictus in Mexico to characterize the environmental conditions related to its presence, and to generate updated environmental suitability maps. The predictors with the greatest contribution to characterizing the occupied niche for Ae. albopictus were NDVI and annual mean temperature. We also estimated the environmental suitability for Ae. albopictus in regions of the country where it has not been documented yet, by means of: 1) transferring its occupied niche model to these regions and 2) modeling its fundamental niche using global data. Our models will help vector control and public health institutions to identify areas where Ae. albopictus has not yet been recorded but where it may be present. We emphasize that most of Mexico has environmental conditions that potentially allow the survival of Ae. albopictus, which underscores the need for systematic mosquito monitoring in all states of the country.
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Affiliation(s)
- Carlos Yañez-Arenas
- Grupo de Análisis en Ecología Geográfica Aplicada, Laboratorio de Biología de la Conservación, Universidad Nacional Autónoma de México, Parque Científico y Tecnológico de Yucatán, Carretera Sierra Papacal Chuburná Puerto Km. 5, Sierra Papacal, Yucatán, Mexico
| | - Rodolfo Rioja-Nieto
- Laboratorio de Análisis Espacial de Zonas Costeras, Universidad Nacional Autónoma de México, Parque Científico y Tecnológico de Yucatán, Carretera Sierra Papacal Chuburná Puerto Km. 5, Sierra Papacal, Yucatán, Mexico
| | - Gerardo A Martín
- Wildlife Health Research Group, James Cook University, College of Public Health, Medical and Veterinary Sciences. James Cook Drive, Australia
| | - Felipe Dzul-Manzanilla
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Benjamín Franklin No. 132, Col. Escandón, Delegación Miguel Hidalgo, CDMX, Mexico
| | - Xavier Chiappa-Carrara
- Grupo de Análisis en Ecología Geográfica Aplicada, Laboratorio de Biología de la Conservación, Universidad Nacional Autónoma de México, Parque Científico y Tecnológico de Yucatán, Carretera Sierra Papacal Chuburná Puerto Km. 5, Sierra Papacal, Yucatán, Mexico
| | - Aura Buenfil-Ávila
- Grupo de Análisis en Ecología Geográfica Aplicada, Laboratorio de Biología de la Conservación, Universidad Nacional Autónoma de México, Parque Científico y Tecnológico de Yucatán, Carretera Sierra Papacal Chuburná Puerto Km. 5, Sierra Papacal, Yucatán, Mexico
| | - Pablo Manrique-Saide
- Unidad Colaborativa de Bioensayos Entomológicos, Departamento de Zoología, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Km. 15.5 Carr. Mérida-Xmatkuil s.n., Mérida, Yucatán, Mexico
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Benjamín Franklin No. 132, Col. Escandón, Delegación Miguel Hidalgo, CDMX, Mexico
| | - José Alberto Díaz-Quiñónez
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, CDMX, Mexico
- Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Avenida Universidad 3000, C.P. 04510 Ciudad de México, CDMX, Mexico
| | - Crescencio Pérez-Rentería
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, CDMX, Mexico
| | - José Ordoñez-Álvarez
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, CDMX, Mexico
| | | | - Herón Huerta
- Instituto de Diagnóstico y Referencia Epidemiológicos 'Dr. Manuel Martínez Báez' (InDRE), Secretaria de Salud, Francisco de P. Miranda No. 177, Col. Unidad Lomas de Plateros, Delegación Álvaro Obregón, CDMX, Mexico
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Kuri-Morales PA, Correa-Morales F, González-Acosta C, Sánchez-Tejeda G, Moreno-Garcia M, Dávalos-Becerril E, Juárez-Franco MF, Benitez-Alva JI, González-Roldán JF. Repellency of 29 Synthetic and Natural Commercial Topical Insect Repellents Against Aedes aegypti (Diptera: Culicidae) in Central Mexico. J Med Entomol 2017; 54:1305-1311. [PMID: 28402436 DOI: 10.1093/jme/tjx076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 11/16/2016] [Indexed: 06/07/2023]
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.
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Affiliation(s)
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico
| | - Cassandra González-Acosta
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico
| | - Gustavo Sánchez-Tejeda
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico
| | - Miguel Moreno-Garcia
- 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
| | - Eduardo Dávalos-Becerril
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico
| | - Marissa F Juárez-Franco
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico
| | - José Ismael Benitez-Alva
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico
| | - Jesús F González-Roldán
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Benjamín Franklin 132, Col. Escandón, C.P. 11800, Mexico City, Mexico
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Kuri-Morales P, Correa-Morales F, González-Acosta C, Sánchez-Tejeda G, Dávalos-Becerril E, Fernanda Juárez-Franco M, Díaz-Quiñonez A, Huerta-Jimenéz H, Mejía-Guevara MD, Moreno-García M, González-Roldán JF. First report of Stegomyia aegypti (= Aedes aegypti) in Mexico City, Mexico. Med Vet Entomol 2017; 31:240-242. [PMID: 28106260 DOI: 10.1111/mve.12225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 08/30/2016] [Revised: 11/01/2016] [Accepted: 11/28/2016] [Indexed: 06/06/2023]
Abstract
Stegomyia aegypti (= Aedes aegypti) (Diptera: Culicidae) is a species of mosquito that is currently widespread in Mexico. Historically, the mosquito has been distributed across most tropical and subtropical areas lower than 1700 m a.s.l. Currently, populations that are found at higher altitudes in regions with cold and dry climates suggest that these conditions do not limit the colonization and population growth of S. aegypti. During a survey of mosquitoes in September 2015, larvae of S. aegypti mosquitoes were found in two different localities in Mexico City, which is located at about 2250 m a.s.l. Mexico City is the most populous city in Mexico and has inefficient drainage and water supply systems. These factors may result in the provision of numerous larval breeding sites. Mosquito monitoring and surveillance are now priorities for the city.
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Affiliation(s)
| | - F Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | - C González-Acosta
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | - G Sánchez-Tejeda
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | - E Dávalos-Becerril
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
| | | | - A Díaz-Quiñonez
- Instituto de Diagnóstico y Referencia Epidemiológicos, Mexico City, Mexico
| | - H Huerta-Jimenéz
- Instituto de Diagnóstico y Referencia Epidemiológicos, Mexico City, Mexico
| | | | - M Moreno-García
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
- Unidad de Bioensayo, Centro Regional de Control de Vectores Panchimalco, Servicios de Salud de Morelos, Cuernavaca, Mexico
| | - J F González-Roldán
- Centro Nacional de Programas Preventivos y Control de Enfermedades, Mexico City, Mexico
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31
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Dzul-Manzanilla F, Ibarra-López J, Bibiano Marín W, Martini-Jaimes A, Leyva JT, Correa-Morales F, Huerta H, Manrique-Saide P, Vazquez-Prokopec GM. Indoor Resting Behavior of Aedes aegypti (Diptera: Culicidae) in Acapulco, Mexico. J Med Entomol 2017; 54:501-504. [PMID: 28011725 DOI: 10.1093/jme/tjw203] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [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: 08/17/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
The markedly anthropophilic and endophilic behaviors of Aedes aegypti (L.) make it a very efficient vector of dengue, chikungunya, and Zika viruses. Although a large body of research has investigated the immature habitats and conditions for adult emergence, relatively few studies have focused on the indoor resting behavior and distribution of vectors within houses. We investigated the resting behavior of Ae. aegypti indoors in 979 houses of the city of Acapulco, Mexico, by performing exhaustive indoor mosquito collections to describe the rooms and height at which mosquitoes were found resting. In total, 1,403 adult and 747 female Ae. aegypti were collected, primarily indoors (98% adults and 99% females). Primary resting locations included bedrooms (44%), living rooms (25%), and bathrooms (20%), followed by kitchens (9%). Aedes aegypti significantly rested below 1.5 m of height (82% adults, 83% females, and 87% bloodfed females); the odds of finding adult Ae. aegypti mosquitoes below 1.5 m was 17 times higher than above 1.5 m. Our findings provide relevant information for the design of insecticide-based interventions selectively targeting the adult resting population, such as indoor residual spraying.
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Affiliation(s)
- Felipe Dzul-Manzanilla
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Eje 4 Sur Benjamín Franklin, Escandón, Ciudad de Mexico, Mexico (; ; )
| | - Jésus Ibarra-López
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Eje 4 Sur Benjamín Franklin, Escandón, Ciudad de Mexico, Mexico (; ; )
| | - Wilbert Bibiano Marín
- Unidad Colaborativa para Bioensayos Entomológicos, Departamento de Zoología, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, Merida, Yucatan, México (; )
| | - Andrés Martini-Jaimes
- Servicios Estatales de Salud de Guerrero, Guerrero, Ruffo Figueroa SN, Burocratas, 39090 Chilpancingo de los Bravo, Mexico
| | - Joel Torres Leyva
- Unidad Académica de Matemáticas, Universidad Autónoma de Guerrero, Av. Javier Méndez Aponte 1, Fraccionamiento Servidor Agrario, Guerrero, Mexico
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE), Secretaria de Salud, Eje 4 Sur Benjamín Franklin, Escandón, Ciudad de Mexico, Mexico (; ; )
| | - Herón Huerta
- Instituto de Diagnóstico y Referencia Epidemiológicos (InDRE), Secretaria de Salud, Ciudad de Mexico, Francisco de P. Miranda 177, Lomas de Plateros, Mexico
| | - Pablo Manrique-Saide
- Unidad Colaborativa para Bioensayos Entomológicos, Departamento de Zoología, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, Merida, Yucatan, México (; )
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