Multi-locus genotyping reveals established endemicity of a geographically distinct Plasmodium vivax population in Mauritania, West Africa by Ba, H, Auburn, S, Jacob, CG, Goncalves, S, Duffy, CW, Stewart, LB, Price, RN, Deh, YB, Diallo, MY, Tandia, A, Kwiatkowski, DP, Conway, DJ