botulism is caused by
Infant botulism signs and symptoms may include: Botulism is caused by botulinum toxin, a poison produced by the bacterium Clostridium botulinum. The organism is common in the soil and exists in untreated water, and can survive in this environment as a resistant spore.he toxin is caused by Clostridium botulinum, a type of bacterium. There are four ways in which the toxin can enter the human body: All types of botulism eventually lead to paralysis, which generally starts with the face muscles and then spreads to the limbs.