TSFM and clostridium difficile infection: Recently, it was observed that the translation elongation factors EF-Ts and EF-Tu are involved in the tRNase activity of several E. coli CDI toxins: CdiA-CTEC869, CdiC-CT96.154, CdiA-CTNC101, and CdiA-CTKp342 (Jones et al., 2017; Michalska et al., 2017; Gucinski et al., 2019).