Statistically significant correlation with low CD4+ cell counts was found for oral candidiasis (P < 0.0001) and Kaposi's sarcoma (P = 0.03); it was insignificant for other disorders such as seborrheic dermatitis (P = 0.22), xerosis (P = 0.25), and onychomycosis (P = 0.08). The gene discussed is CD4; the disease is Dry skin.