Carnevale Pierre auteur aut IRD Guillet Pierre auteur aut IRD Robert Vincent auteur aut IRD Fontenille Didier auteur aut IRD Doannio J. auteur aut IRD Coosemans M. auteur aut IRD Mouchet Jean auteur aut IRD text journalArticle eng text/pdf reformatted digital access It is well known that 'in many instances the rice agrosystem perfectly fits the ecological requirements of pathogens or vectors' and in fact 'malaria, schistosomiasis and Japanese encephalitis are important vector-borne diseases associated with rice production in developing countries' (IRRI, 1987). In spite of these fears, rice cultivation has been on the increase in the African region in response to demographic and economic pressures. However, although rice fields provide suitable breeding places for Anopheles mosquitoes and rice cultivation leads to an increase in the biting rates, the species which are adapted to these sites are not the same in all parts of Africa. Several examples illustrate this phenomenon : An. funestus in the rice fields of Madagascar, An. pharoensis in saline water rice fields in the delta of the Senegal river, An. arabiensis in northern Cameroon and Burundi, An. gambiae Mopti form in the Kou Valley (Burkina Faso) and An. gambiae Savanna form in the rice fields of Kafine near Bouaké (Côte d'Ivoire). The vectorial capacities of these species are not the same and malaria inoculation rates are not necessarily increased in the riceland agroecosystem. The consequences for malaria of introducing rice cultivation depend on the situation before its introduction : it could be worsened in unstable malaria areas but not in stable malaria areas. Therefore, sound epidemiological and entomological knowledge are needed before causing any environmental modifications for agricultural purposes and there should be regular monitoring to avoid any outbreak. (Résumé d'auteur) specialized PALUDISME VECTEUR MOUSTIQUE STRUCTURE DE POPULATION RIZICULTURE FACTEUR ECOLOGIQUE TRANSMISSION MORBIDITE REPARTITION GEOGRAPHIQUE AFRIQUE MADAGASCAR SAINT LOUIS CAMEROUN BURUNDI BURKINA FASO COTE D'IVOIRE 052ANOPAL02 Coluzzi M. ed. edt IRD Bradley D. ed. edt IRD 41 1-3 273-276 1999 0048-2951 The Malaria Challenge : After One Hundred Years of Malariology, Rome (ITA), 1998/11/16-19 https://www.documentation.ird.fr/hor/fdi:010020974 0048-2951 [F B010020974] https://www.documentation.ird.fr/hor/fdi:010020974 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/b_fdi_53-54/010020974.pdf IRD - Base Horizon / Pleins textes 2000-03-02 2018-06-19 fdi:010020974 fre