title: [The Duffy blood group in migrants of French-speaking Africa].
abstract: The Duffy blood types survey in 544 subjects coming from French speaking African countries, shows the high percentage of subjects having a Duffy a- b- blood type (94%). It ought to be emphasized that this predominantly Duffy a- b- population resides in areas in where there is according to the WHO data, a very low incidence of Plasmodium vivax invasion. Moreover, we have taken for another example North Vietnam, an area where there is a large Plasmodium vivax invasion and where we have found a small percentage of Duffy negative subjects (5.6%). In agreement with many authors reporting an association between Duffy negatively and vivax malarial refractoriness, this survey demonstrate that in French speaking African areas where there is a very low incidence of Plasmodium vivax invasion we have found, as expected, a high rate of Duffy negative subject.
mesh_terms: D000354:Africa, Western; D001789:Blood Group Antigens; D004375:Duffy Blood-Group System; D006801:Humans; D008288:Malaria / Q000276:immunology; D010641:Phenotype; D010966:Plasmodium vivax / Q000276:immunology; D014171:Transients and Migrants; D014744:Vietnam
chemical_list: D001789:Blood Group Antigens; D004375:Duffy Blood-Group System
vernacular_title: Le groupe sanguin Duffy chez les migrants d'Afrique francophone.