In agreement with previous publications (Wu et al., 2001; Czar et al., 2001; Kaji et al., 2012), neither Bcl6fl/flCD4-cre+/−, nor Sh2d1a−/− mouse strains showed alterations in the counts of CD4+ and CD8+ T cells, B cells and NK cells in the spleen prior to infection (Fig. S2). The gene discussed is CD4; the disease is infection.