Clinical features in the child included low birth weight (1,520 gm), intolerance for enteral feeding, elevated liver transaminase, eczema, rotavirus enteritis, Klebsiella pneumoniae urinary tract infection, methicillin-resistant Staphylococcus aureus sepsis, lymphocytopenia, eosinophilia, low IgG, absent IgA, IgM, higher levels of IgE, normal expression of T-cell excision circles, complete absence of K-deleting recombinant circles, absent CD19+ cells, and low CD8+ cells and NK cells. The gene discussed is CD79A; the disease is Increased total eosinophil count.