Botulism is a rare but serious paralytic illness caused by a nerve toxin produced by the bacterium Clostridium botulinum (klos-trih-dee-um bot-u-li-num). Human botulism is mainly caused by four of the seven recognized types of Clostridium botulinum bacteria: types A, E, rarely F and possibly G. The recorded history of botulism began in 1735, when the disease was first associated with the consumption of sausage.
Warts occur in a variety of shapes and sizes. A wart may appear as a bump with a rough surface, or it may be flat and smooth. Tiny blood vessels (capillaries) grow into the core of the wart to supply it with blood.
More detail and supporting information is in the main article. 1  A wart is a small growth on a person's hands or feet. 2  There are several types of wart including common warts, verrucas, plane warts, filiform warts, and mosaic warts. 3  Most warts disappear on their own and do not need to be medically treated.