Baseline levels of functional T helper cell subsets of the depressed CVID patients. With regard to the functional subtypes of CD4+ T helper cells (Staining B, Th1, Th2, Th17 and T reg cells) there was a considerable per patient heterogeneity regarding the levels of these CD4+ subpopulations as compared to the healthy control levels (Table 1 and Supplementary Table 3). The gene discussed is CD4; the disease is common variable immunodeficiency.