Using direct DNA sequencing, we identified the codon 24 (A > T) (HBB: c.72T > A, p.Gly24Gly), mutation in two out of 15 Mauritanian β-thalassemia (β-thal) carriers. Both were of Black origin and had hematological indices compatible with mild β-thal minor. Could this variant be more common than expected in the Black Mauritanian population?
Keywords: Codon 24; Mauritania; Thalassemia.