How is tetanus spread?

From the Dirt: Tetanus spores live in the dirt. It is contracted through a cut or wound that becomes contaminated with the organism. This could be a naturally curious question. However, If you are not immunized or have unimmunized children, run don't walk to your nearest pediatrician's office to rectify this situation! You are quite close to the Measles outbreak epicenter, tetanus could be next!