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Malaria intensity in Colombia by regions and populations

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Date
2018
Author
Feged-Rivadeneira, AlejandroAutoridad Universidad de Rosario
Ángel, Andrés
González-Casabianca, Felipe
Rivera, Camilo
Métricas

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Citation
URI
10.1371/journal.pone.0203673
http://repository.urosario.edu.co/handle/10336/19083

Abstract
Determining the distribution of disease prevalence among heterogeneous populations at the national scale is fundamental for epidemiology and public health. Here, we use a combination of methods (spatial scan statistic, topological data analysis and epidemic profile) to study measurable differences in malaria intensity by regions and populations of Colombia. This study explores three main questions: What are the regions of Colombia where malaria is epidemic? What are the regions and populations in Colombia where malaria is endemic? What associations exist between epidemic outbreaks between regions in Colombia? Plasmodium falciparum is most prevalent in the Pacific Coast, some regions of the Amazon Basin, and some regions of the Magdalena Basin. Plasmodium vivax is the most prevalent parasite in Colombia, particularly in the Northern Amazon Basin, the Caribbean, and municipalities of Sucre, Antioquia and Cordoba. We find an acute peak of malarial infection at 25 years of age. Indigenous and Afrocolombian populations experience endemic malaria (with household transmission). We find that Plasmodium vivax decreased in the most important hotspots, often with moderate urbanization rate, and was re-introduced to locations with moderate but sustained deforestation. Infection by Plasmodium falciparum, on the other hand, steadily increased in incidence in locations where it was introduced in the 2009-2010 generalized epidemic. Our findings suggest that Colombia is entering an unstable transmission state, where rapid decreases in one location of the country are interconnected with rapid increases in other parts of the country. © 2018 Feged-Rivadeneira et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Subject
Colombia ; Controlled Study ; Deforestation ; Disease Classification ; Disease Transmission ; Endemic Disease ; Epidemic ; Ethnicity ; Human ; Major Clinical Study ; Malaria ; Malaria Falciparum ; Male ; Nonhuman ; Plasmodium Vivax Malaria ; Population Research ; Urbanization ; Western Hemisphere ;

Keyword

Article ; Female ; Incidence ;

Subject

Enfermedades ;

Source link

https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0203673&t...

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