Sickle Beta Thalassemia

**Semantic type:** Disease or Syndrome

**Definition:** A heterozygous state in which a person has a hemoglobin S allele along with a beta-thalassemia allele. The severity of the condition is determined to a large extent by the quantity of normal hemoglobin produced by the beta-thalassemia gene.

**Synonyms:** - Hb S-Beta Thalassemia - S-Beta Thalassemia - Sickle Cell-Beta Thalassemia - Sickle Cell-Beta-Thalassemia