what are duffy antigens
The Duffy blood group antigen serves not only as blood group antigen, but also as a receptor for a family of proinflammatory cytokines termed chemokines, and as a receptor for Plasmodium vivax malaria parasites.ndividuals with the Duffy-negative phenotype are resistant to P. vivax invasion, and the molecular mechanism that gives rise to the phenotype Fy(a-b -) in black individuals has been associated with a point mutation - 33TC expressed in homozigosity in the FYB allele [5].