CASP3 and infection: Infection with Ft SchuS4 resulted in significant changes in both antiapoptotic (Bax/Bcl-2, Mcl-1, Bcl-xl, and Bcl-xl/Bak) and proapoptotic markers (Bax, Bak, Bim, and caspase-3) (Supplementary Figures 1 and 2).