Mapping malaria transmission risk in northern Morocco using entomological and environmental data

Adlaoui E., Faraj C., El Bouhmi M., El Aboudi A., Ouahabi S., Tran Annelise, Fontenille Didier, El Aouad R.. 2011. Mapping malaria transmission risk in northern Morocco using entomological and environmental data. Malaria Research and Treatment (391463), 9 p.

https://doi.org/10.4061/2011/391463

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Résumé : 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.

Mots-clés Agrovoc : malaria, Plasmodium falciparum, Plasmodium vivax, télédétection, Anopheles, facteur du milieu, épidémiologie

Mots-clés géographiques Agrovoc : Maroc

Mots-clés complémentaires : Anopheles labranchiae

Classification Agris : L73 - Maladies des animaux
U30 - Méthodes de recherche

Champ stratégique Cirad : Axe 4 (2005-2013) - Santé animale et maladies émergentes

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