Illinois Added GAMT Deficiency to Newborn Screenings
New parents in Illinois should know about the state's latest screening, which helps catch a rare metabolic condition early.
Updated on Sept. 22, 2026 in Babies
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Illinois began mandatory newborn screenings for GAMT deficiency in March 2026, following a 2023 federal recommendation. The state program has already identified one positive case since the new testing protocol went into effect.
Why it matters
Early diagnosis and treatment are critical for improving long-term developmental outcomes in children with this rare metabolic condition. By incorporating this test, the state aims to ensure that infants receive necessary medical interventions as quickly as possible.
Illinois now screens for 68 conditions as part of its public health program, which has been in operation since 1965. Newborns who test positive but lack health insurance are eligible for metabolic formula at no cost.
The players
Illinois Department of Public Health
The state agency responsible for overseeing and managing the mandatory newborn screening program and public health initiatives.
The details
Newborns undergo mandatory testing shortly after birth as part of the state's comprehensive public health effort to detect genetic conditions. The program's addition of GAMT deficiency follows a 2024 state approval process and federal guidance issued in 2023. This testing path aims to catch metabolic issues before they impact a child's development, providing a window for treatment that previously relied on later diagnosis.
Timeline
The state newborn screening program began in 1965.
The federal government recommended screening for GAMT deficiency in 2023.
Illinois approved the addition of GAMT deficiency to the program in 2024.
Mandatory newborn screenings for GAMT deficiency began in March 2026.
The Home Front
Illinois continues to expand its state-run health screening protocols, marking a shift from its original 1965 program scope. This integration aligns state practices with the federal government's 2023 recommendation for universal GAMT deficiency testing.
Parents of newborns in Illinois should review their hospital discharge paperwork to confirm which screenings were completed. If you have questions about your child's results or need information regarding the availability of metabolic formula, contact your pediatrician or the state department.
The takeaway
The inclusion of GAMT deficiency in state screenings serves as a reminder of the importance of early metabolic testing for infant health. Families should keep a copy of their child's initial screening results in their home health files for long-term reference.
Further reading
For more information on state-mandated health checks, visit the Babies section.
Source note: This article includes information reported by NBC Chicago.
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