They warn tetanus can be transmitted by cuts or puncture wounds.
Tetanus causes painful muscle spasms and stiffness, usually all over the body. It can lead to the tightening of muscles in the head and neck so the victim cannot open his or her mouth or swallow, or sometimes even breath.
So if you've been exposed to flood waters and have open cuts or wounds, you should talk to your doctor about whether you should get a tetanus shot.