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.
The characteristics and symptoms of HPV warts, depends on wart type, can include: 1  A small, raised bump may appear on the skin. 2  The wart may have a rough or smooth surface. 3  The average size can range from one to ten millimetres.  Warts can occur singly or in 1  clusters. Face, feet, knees and hands are most commonly affected.