Figure 9From: The protective effect of recombinant Lactococcus lactis oral vaccine on a Clostridium difficile-infected animal model Effect of anti- Clostridium difficile toxin A (TcdA) sera against the cytotoxicity of TcdA assayed by flow cytometry. (A) Control; (B) TcdA treatment; (C) Anti-TcdA serum pre-treatment; and (D) Anti-TcdA serum treatment.Back to article page