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Malaria Research and Treatment
Volume 2011 (2011), Article ID 391463, 9 pages
Research Article

Mapping Malaria Transmission Risk in Northern Morocco Using Entomological and Environmental Data

1Laboratoire d'Entomologie Médicale, Institut National d'Hygiène, 27 Avenue Ibn Batouta, Agdal, Rabat 10090, Morocco
2Faculté des Sciences, Université Mohamed V, Agdal, Rabat 10090, Morocco
3Agricultural Research Center for International Development (CIRAD), Epidemiology and Ecology of Animal Diseases, Montpellier Cedex 5, France
4Institut de Recherche pour le Développement (IRD), UR016, Caractérisation et Contrôle des Populations de Vecteurs, Montpellier Cedex 5, France
5Institut National d'Hygiène, 27 Avenue Ibn Batouta, Agdal, Rabat 10090, Morocco

Received 18 July 2010; Revised 14 January 2011; Accepted 3 March 2011

Academic Editor: Virgílio E. do Rosário

Copyright © 2011 E. Adlaoui et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Malaria resurgence risk in Morocco depends, among other factors, on environmental changes as well as the introduction of parasite carriers. The aim of this paper is to analyze the receptivity of the Loukkos area, large wetlands in Northern Morocco, to quantify and to map malaria transmission risk in this region using biological and environmental data. This risk was assessed on entomological risk basis and was mapped using environmental markers derived from satellite imagery. Maps showing spatial and temporal variations of entomological risk for Plasmodium vivax and P. falciparum were produced. Results showed this risk to be highly seasonal and much higher in rice fields than in swamps. This risk is lower for Afrotropical P. falciparum strains because of the low infectivity of Anopheles labranchiae, principal malaria vector in Morocco. However, it is very high for P. vivax mainly during summer corresponding to the rice cultivation period. Although the entomological risk is high in Loukkos region, malaria resurgence risk remains very low, because of the low vulnerability of the area.