Abstract
Objectives
The purpose of this study is to analyse the effect of a community participation programme based on the ecosystem model on the incidence of dengue in urban communities.
Methods
A randomized controlled field trial was conducted in the state of Colima, Mexico. The intervention consisted of a community participation programme focused on the ecosystem; simultaneously, the control groups were communities that only received the usual official prevention programs. The incidence of dengue was estimated in people of both groups due to the appearance of de novo IgM antibodies during the follow-up period.
Results
The incidence of dengue in the intervened group was 2.58%/month (n = 818) and in control group 2.26%/month (n = 994), with a risk ratio of 1.14 (95% CI 0.89–1.45) and a PAF of 0.06 (95% CI − 0.056 to 0.16). The A. aegypti larval density (Breteau Index) was reduced in the treated group.
Conclusions
The implementation of a community participation programme in the cities of Colima, Mexico, showed a slightly counterproductive effect on the incidence of dengue. This happened even with a reduction in the A. aegypti index.
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Acknowledgements
The authors thanks to Juan Ignacio Arredondo-Jimenez and Pierre Burciaga from the Centro Nacional de Vigilancia y Control de Enfermedades of the Ministry of Health Mexico; to Carmen Guzman Bracho from the INDRE of the Same Ministry of Health; to the students of the faculties of Sciences, Medicine, and Psychology and the Department of Vectors of the Health Department of Colima.
Funding
This project was financed by a mixed grant from the CONACYT-Gobierno del Estado de Colima, project Number: FOMIX Colima 2007-CO2-75206. The project is part of a collaborative agreement between Universidad de Colima, The Mexican Ministry of Health and the Instituto de Medicina Tropical Pedro Kouri, La Habana, Cuba.
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OANS: Advisor upon work with children and adolescents, work at schools, the contribution of ideas. MDCR: Fieldwork, coordination of focal groups, qualitative data collection. YTR: Fieldwork, advisory in community participation, the contribution of ideas, linkage with the Institute of Tropical Medicine in La Havana, Cuba. HODL: Advisor in community participation activities, the contribution of ideas. IDE: Support in the laboratory work and contribution of ideas. CMHS: Analysis of data, work at schools, advisor in design and preparation of the draft. FEG: Design, original idea, resource management, writing of the draft. All authors have approved the final article.
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Ethical approval
Each participant signed a statement of informed consent for minimal intervention studies in accordance with the stipulations of the Norma Oficial Mexicana for health research. In the case of children, parents sign was collected. The study was approved by the institutional bioethics and research committee of the Department of Health of the State of Colima (Number 05/2007), following the Helsinki’s 1964 Declaration.
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Newton-Sánchez, O.A., de la Cruz Ruiz, M., Torres-Rojo, Y. et al. Effect of an ecosystem-centered community participation programme on the incidence of dengue. A field randomized, controlled trial. Int J Public Health 65, 249–255 (2020). https://doi.org/10.1007/s00038-020-01345-y
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DOI: https://doi.org/10.1007/s00038-020-01345-y