Clostridium botulinum

Clostridium botulinum (abbreviated as C. botulinum) is an anaerobic, spore-forming bacterium that produces the neurotoxin botulinum, which has the highest potency of any known toxin with a median lethal dose (LD50) of only 1.3-2.1 ng/kg. C. botulinum endospores are common in soil and can survive heat and other extreme conditions. C. botulinum causes the condition known as “botulism.”