Numerous studies have shown evidence supporting the benefits of universal newborn screening for primary immunodeficiencies (PID) and for Spinal Muscular Atrophy (SMA). We have developed a four-plex. real-time PCR assay to screen for Severe Combined Immune Deficiencies (SCID). X-linked agammaglobulinemia (XLA). https://parisnaturalfoodes.shop/product-category/echinaforce-junior/