Video describing tetanus, its complications and the importance of getting your vaccinations at the right times.
Tetanus is a serious disease caused by bacteria that is usually found in soil and manure. It affects your nervous system and causes severe muscle contractions, mainly of your jaw and neck muscles. Tetanus can interfere with your ability to breathe and can be life threatening.
Note: this video is US-based, so some information may differ from New Zealand practice.
"Tetanus, often called lockjaw, is caused by the release of tetanus toxin from a spore-forming bacterium found worldwide in the environment, especially in soil. Tetanus toxin is one of the most potent poisons known."