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Clostridium. They are an exotoxin (a virulence factor)and help to facilitate the spread of gas gangrene. They normally target the connective tissue in muscle cells and other body organs.

added this to the article source Tortora, Gerard J. Microbiology: an introduction. Gerard J. Tortora, Berdell R funke, Cristine L. Case- 9th ed. 2007 Pearson Benjamin Cummings. J1j2j3 ( talk) 19:50, 12 December 2007 (UTC) reply