T-B+ severe combined immunodeficiency due to JAK3 deficiency (MONDO_0010938) can be described as follows. Severe combined immunodeficiency (SCID) T-B+ due to JAK3 deficiency is a form of SCID characterized by severe and recurrent infections, associated with diarrhea and failure to thrive. Also known as: SCID, autosomal recessive, T-negative/B-positive type, T-B+ SCID due to JAK3 deficiency, T-cell negative B-cell positive severe combined immunodeficiency due to JAK3 deficiency.