title: [Geographical survey of drepanocytemia: causes of its distribution in Africa south of Sahara (author's transl)].
abstract: In Africa South of Sahara, HbS is distributed in east-west oriented belts, its frequency decreasing from equator to tropics. This singular feature results from interaction of various and complex phenomenons: apparition and diffusion of the mutation, role of malaria, climatic conditions.
mesh_terms: D000349:Africa; D000755:Anemia, Sickle Cell / Q000453:epidemiology* / Q000235:genetics; D044383:Black People; D005787:Gene Frequency; D006801:Humans; D009154:Mutation; D014329:Tropical Climate; D044465:White People
vernacular_title: Géographie de la drépanocytose: les causes de sa répartition dans l'Afrique au sud du Sahara.