Black Health

Sickle Cell · Topic guide

Sickle Cell Newborn Screening — Every State Screens, What Happens Next

Every U.S. state has screened newborns for sickle cell disease since 2006, and early identification lets families start penicillin prophylaxis by two months old.

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Universal SCD newborn screening — how it works

Every U.S. state and the District of Columbia now includes sickle cell disease in its universal newborn screening panel. The test is a drop of blood taken from the baby's heel within 24-48 hours of birth, analyzed for hemoglobin variants using isoelectric focusing or HPLC. Results are reported to the baby's pediatrician within 7-14 days; a positive screen triggers a confirmatory test and immediate referral to a pediatric hematologist or comprehensive sickle cell center.

The state-by-state adoption history

New York was the first state to add SCD to its newborn screening panel in 1975. California, Massachusetts, and Maryland followed in the late 1970s. The last state to adopt universal screening was Mississippi in 2006. All 50 states now participate. See our state pages for each state's specific adoption year.

What the federal panel requires

SCD is on the federally recommended Recommended Uniform Screening Panel (RUSP) maintained by the Secretary's Advisory Committee on Heritable Disorders in Newborns and Children. The RUSP also includes hemoglobinopathies other than SCD — thalassemia major, HbSC, HbSβ-thalassemia — that are detected by the same assay and carry clinical significance.

After a positive screen

The single most important next step is starting twice-daily oral penicillin prophylaxis no later than two months of age and continuing until at least age five. Penicillin prophylaxis is the intervention that drove the dramatic decline in SCD-associated childhood mortality over the past four decades. The CDC and AAP have published implementation guidance for pediatricians at cdc.gov/ncbddd/sicklecell.

The baby should also be enrolled in a comprehensive pediatric SCD clinic within the first month — see our center directory. Standard immunizations (on schedule) plus the pneumococcal polysaccharide vaccine at age two are critical. By age two, most comprehensive centers will begin transcranial Doppler (TCD) screening for stroke risk.

Genetic counseling for parents

A positive SCD screen in a newborn means both parents carry at least one sickle cell gene variant. Comprehensive centers include genetic counseling as part of the initial family workup — covering recurrence risk for future pregnancies, options during pregnancy (chorionic villus sampling, amniocentesis, preimplantation testing), and testing for siblings.

For Black families

Universal newborn screening is the single public-health policy most responsible for the dramatic decline in under-five SCD mortality among Black children between 1980 and 2000. Before screening was universal, roughly 15% of Black children with SCD died of overwhelming pneumococcal sepsis before age five; with universal screening + early penicillin prophylaxis + pneumococcal vaccination, that number is now under 1.5%. It's one of the best examples of a racially targeted public-health intervention that worked — but it only works if the family is linked to comprehensive care after the positive screen.

More sickle cell topics

Comprehensive centers

What a Sickle Cell Comprehensive Care Center Actually Is — and How to Find One

Treatments

Sickle Cell Disease Treatments — Hydroxyurea to CRISPR Gene Therapy

Adult transition

The Sickle Cell Adolescent-to-Adult Transition — Where Mortality Peaks

ER pain crisis

Sickle Cell Pain Crisis in the ER — How to Advocate for Proper Treatment

Clinical trials

Active Sickle Cell Clinical Trials Recruiting Black Patients

References

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