Discussion
__________________ is a hyaluronidase that may aid invasiveness of C.perfringens.
Answer: C
Correct answer: κ toxin
Among the minor toxins of C. perfringens, mu toxin is the hyaluronidase, which breaks down the hyaluronic acid of connective tissue ground substance and so helps the infection spread through the tissue planes. Kappa toxin is the collagenase, theta toxin the oxygen-labile haemolysin, and alpha toxin the lecithinase that is the principal lethal factor. Together they explain the speed with which gas gangrene advances.
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