One patient had hematological and hemoglobin profiles indicating SC disease (double heterozygote for hemoglobin S and hemoglobin C), 1 had S-β thalassemia disease (double heterozygote for hemoglobin S and beta-thalassemia) and all others had SS disease (homozygote for the beta S globin; Table 1). This evidence concerns the gene HBB and Beta-thalassemia.