BCL6 and infection: We therefore explored the effects of inactivation of the Bcl6 gene in T cells [Bcl6fl/flCD4-cre+/− (Kaji et al., 2012)] or the Sh2d1a gene [Sh2d1a−/− (Wu et al., 2001), encoding SAP] on the ability to control a chronic P. chabaudi blood-stage infection.