Clostridium difficile, the cause of antibiotic-induced infection in hospitals, possesses two toxins, A and B, the former of which was believed to be the major C. difficile virulence factor. Using an animal model and C. difficile mutants, evidence is now presented that toxin B, and not toxin A, is essential for infection.
- Dena Lyras
- Jennifer R. O’Connor
- Julian I. Rood