Newborn Screening for Metabolic and Sickle Cell Disorders Program

Classification and Fact Sheets

Sickle Cell Diseases
  • Sickle cell anemia - Hemoglobin SS (FS)
  • Hemoglobin SC Disease - Hemoglobin SC (FSC)
  • Sickle Beta-Thalassemia (FS or FSA)
    • Sickle Beta Plus thalassemia (FSA)
    • Sickle Beta Zero thalassemia (FS)
Other Clinically Significant, Frequent Structural Variants
Beta-Thalassemia (F only)
  • Beta-thalassemia major
  • Beta-thalassemia minor
  • Beta-thalassemia intermedia
Alpha Thalassemia and Bart's Hemoglobin (FA + Bart's)
  • Hemoglobin Bart's
  • Alpha-thalassemia major
  • Alpha-thalassemia minor
Hemoglobin Variant Carriers (Traits)
  • Sickle Cell Trait (FAS)
  • C trait (FAC)
  • E trait (FAE)
  • Other variants (FA variant)
Occasionally Encountered Hemoglobins

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  • Contact Information
  • 2 Peachtree Street
    Atlanta, GA 30303
  • (404) 657-4143
  • 1.800.georgia or
    678.georgia