Visceral leishmaniasis in Tunisia: spatial distribution and association with climatic factors
| Autor: | Kais Ben-Ahmed, Fakhri Jeddi, Jamila Ghrab, Aïda Bouratbine, Karim Aoun, Mhamed-Ali El-Aroui |
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| Přispěvatelé: | Institut Supérieur de Gestion de Tunis [Tunis] (ISG), Université de Tunis, Laboratoire de Parasitologie, Institut Pasteur de Tunis, Institut Pasteur de Tunis, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), This study was supported by the Ministry of Higher Education, Research and Technology in Tunisia and carried out within the framework of the Research Laboratory Parasitoses Emergentes LR 05SP03. |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Time Factors
Tunisia Climate Rain [SDV]Life Sciences [q-bio] 030231 tropical medicine Poisson distribution Spatial distribution MESH: Poisson Distribution 03 medical and health sciences symbols.namesake 0302 clinical medicine Virology parasitic diseases medicine Humans Poisson Distribution MESH: Incidence Arid zone 0303 health sciences Humid continental climate MESH: Humans 030306 microbiology Incidence Incidence (epidemiology) MESH: Time Factors Leishmaniasis medicine.disease MESH: Climate Infectious Diseases Visceral leishmaniasis Geography MESH: Leishmaniasis Visceral Spatial regression symbols Leishmaniasis Visceral Parasitology MESH: Rain Physical geography MESH: Tunisia geographic locations |
| Zdroj: | American Journal of Tropical Medicine and Hygiene American Journal of Tropical Medicine and Hygiene, American Society of Tropical Medicine and Hygiene, 2009, 81 (1), pp.40-5 ResearcherID Scopus-Elsevier |
| ISSN: | 0002-9637 |
| Popis: | International audience; Visceral leishmaniasis (VL) cases in children less than five years of age were recorded from 1996 through 2006 from Tunisian pediatric departments. Mean incidence rates were calculated for each of the 215 districts in the study area. Averages of annual rainfall and extreme values of low temperatures in winter and high temperatures in summer were used to characterize the climate of each district according to its continentality index and bioclimatic zone. A geographic information system and a local indicator of spatial association were used to summarize the spatial properties of VL distribution. Poisson spatial regression was performed to study the relationship between VL incidence rates and climatic parameters. We identified one hot-spot region of 35 inland districts located mostly in the semi-arid bioclimatic zone and two cold-spots located in coastal regions of the northeastern sub-humid zone and the southeastern arid zone. The incidence rate of VL was positively correlated with mean yearly rainfall and continentality index. |
| Databáze: | OpenAIRE |
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