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Title: Geo-environmental model for the prediction of potential transmission risk of Dirofilaria in an area with dry climate and extensive irrigated crops: The case of Spain
Authors: Simón, Luis
Afonin, Alexandr
López-Díez, Lucía Isabel
González-Miguel, Javier
Morchon Garcia,Rodrigo 
Carretón Gomez, Elena 
Montoya Alonso, José Alberto 
Kartashev, Vladimir
Simón Martín,Fernando 
UNESCO Clasification: 310907 Patología
240112 Parasitología animal
Keywords: Dirofilaria immitis
Irrigated crops
Transmission risk, et al
Issue Date: 2014
Publisher: 0304-4017
Journal: Veterinary Parasitology 
Abstract: Zoonotic filarioses caused by Dirofilaria immitis and Dirofilaria repens are transmitted by culicid mosquitoes. Therefore Dirofilaria transmission depends on climatic factors like temperature and humidity. In spite of the dry climate of most of the Spanish territory, there are extensive irrigated crops areas providing moist habitats favourable for mosquito breeding. A GIS model to predict the risk of Dirofilaria transmission in Spain, based on temperatures and rainfall data as well as in the distribution of irrigated crops areas, is constructed. The model predicts that potential risk of Dirofilaria transmission exists in all the Spanish territory. Highest transmission risk exists in several areas of Andalucía, Extremadura, Castilla-La Mancha, Murcia, Valencia, Aragón and Cataluña, where moderate/high temperatures coincide with extensive irrigated crops. High risk in Balearic Islands and in some points of Canary Islands, is also predicted. The lowest risk is predicted in Northern cold and scarcely or non-irrigated dry Southeastern areas. The existence of irrigations locally increases transmission risk in low rainfall areas of the Spanish territory. The model can contribute to implement rational preventive therapy guidelines in accordance with the transmission characteristics of each local area. Moreover, the use of humidity-related factors could be of interest in future predictions to be performed in countries with similar environmental characteristics.
ISSN: 0304-4017
DOI: 10.1016/j.vetpar.2013.12.027
Source: Veterinary Parasitology [ISSN 0304-4017], v. 200, p. 257-264
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