Abstract
We present the rare codon 24 (T > A) (β+) mutation causing transfusion-dependent β-thalassemia (β-thal) in combination with the common codon 39 (C > T) (β0) defect in a Moroccan boy. We report the characterization of the mutation, phenotype, haplotype and possible origin of the first case in Morocco and discuss the significance of this genotype combination with a β0 defect.
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