ArticleFrontiers in immunology2026
SCID newborn screening: seven-year performance and outcomes including T-cell lymphopenia in Catalonia (Spain).
Article in Frontiers in immunology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- The Spanish Uniform Newborn Screening Panel (SUSP): A National Consensus Framework for Harmonized Newborn Screening.International journal of neonatal screening · 2026Article
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16 authors.
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Abstract
Purpose: Severe combined immunodeficiency (SCID) can be detected at birth through T-cell receptor excision circles (TREC) analysis in dried blood spots. This study summarizes the results of the consolidated SCID newborn screening (NBS) program in Catalonia (Spain) during the first seven years of program implementation (2017-2023). Methods: Newborns were screened for SCID using the EnLite Neonatal TREC assay (cut-off: 20 copies/μL), with confirmatory immunological and genetic testing performed in screen-positive cases. Definitive SCID diagnosis was established according to PIDTC-2022 definitions, while final diagnostic classification followed the recommendations provided by Blom et al. Results: Among 420,263 screened newborns, 105 screened positive (0.02%). SCID was diagnosed in eight infants and congenital athymia in one, corresponding to an overall incidence of 1:46,753 live births. Identified genetic defects included Conclusions: The Catalonian SCID newborn screening program demonstrated high clinical effectiveness, enabling early definitive treatment and excellent survival outcomes with a low false-positive burden. In addition, systematic follow-up of non-SCID T-cell lymphopenia identified through SCID screening appears warranted. These findings support the sustainability and clinical value of universal SCID screening programs.
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