Analysis of the El Niño/La Niña-Southern Oscillation variability and malaria in the Estado Sucre, Venezuela

Delgado-Petrocelli, Laura and Córdova, Karenia and Camardiel, Alberto and Aguilar, Víctor H. and Hernández, Denise and Ramos, Santiago (2012) Analysis of the El Niño/La Niña-Southern Oscillation variability and malaria in the Estado Sucre, Venezuela. Geospatial health, 6 (3). S51-S57. ISSN 1970-7096

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Abstract

The last decade has seen an unprecedented, worldwide acceleration of environmental and climate changes. These processes impact the dynamics of natural systems, which include components associated with human communities such as vector-borne diseases. The dynamics of environmental and climate variables, altered by global change as reported by the Intergovernmental Panel on Climate Change, affect the distribution of many tropical diseases. Complex systems, e.g. the El Niño/La Niña-Southern Oscillation (ENSO), in which environmental variables operate synergistically, can provoke the reemergence and emergence of vector-borne diseases at new sites. This research investigated the influence of ENSO events on malaria incidence by determining the relationship between climate variations, expressed as warm, cold and neutral phases, and their relation to the number of malaria cases in some north-eastern municipalities of Venezuela (Estado Sucre) during the period 1990-2000. Significant differences in malaria incidence were found, particularly in the La Niña ENSO phases (cold) of moderate intensity. These findings should be taken into account for surveillance and control in the future as they shed light on important indicators that can lead to reduced vulnerability to malaria.

Item Type:	Article
Uncontrolled Keywords:	Climate variability, El Niño/La Niña-Southern Oscillation, geographical information systems, malaria, Venezuela
Subjects:	600 Tecnologia - Scienze applicate > 610 Medicina e salute (Classificare qui la tecnologia dei servizi medici) > 616 Malattie (classificare qui la Clinica medica, la medicina basata sull'evidenza, la Medicina interna, la Medicina sperimentale) > 616.9 Altre malattie (altri rami della Medicina) > 616.93 Infezioni da clostridium, difterite, colera, dissenterie, protozoosi > 616.936 Protozoosi > 616.9362 Malaria
Depositing User:	Luca Tiberi
Date Deposited:	12 Sep 2019 09:46
Last Modified:	12 Sep 2019 09:46
URI:	http://eprints.bice.rm.cnr.it/id/eprint/6664

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