<unk>  is a Gram-positive, rod-shaped, anaerobic, spore-forming, motile bacterium with the ability to produce the neurotoxin<unk> . The<unk>  toxin can cause botulism, a severe flaccid paralytic disease in humans and other animals, and is the most potent toxin known to mankind, natural or synthetic, with a lethal dose of 1.3–2.1 ng/kg in humans.<unk>  is a diverse group of pathogenic bacteria initially grouped together by their ability to produce<unk>  toxin and now known as four distinct groups,<unk>  groups I–IV, as well as some strains of Clostridium butyricum and Clostridium baratii, are the bacteria responsible for producing<unk>  toxin.<unk>  is responsible for foodborne botulism (ingestion of preformed toxin), infant botulism (intestinal infection with toxin-forming<unk> , and wound botulism (infection of a wound with<unk> .<unk>  produces heat-resistant endospores that are commonly found in soil and are able to survive under adverse conditions.<unk>  is commonly associated with bulging canned food; bulging, misshapen cans can be due to an internal increase in pressure caused by gas produced by the bacteria.
Clostridium botulinum
Clostridium tetani
Clostridium perfringens
Clostridium innocuum
Neisseria mucosa
Pasteurella
Prevotella bivia
Clostridium ramosum