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Tetanus, otherwise known as lockjaw is a severe and often deadly bacterial infection that is more common in third world countries. In the United States, there are still reported cases in those who fail to maintain proper vaccinations. Tetanus affects the central nervous system and typically focuses on muscle tightness at first. Tetanus is considered to be an urgent medical situation and treatment should never be delayed. It affects an estimated one million people per year throughout the world.

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1. Muscle Contractions

The most common side effect of lockjaw is the spasms that occur in the facial area, namely the jawbone followed by spasms into the neck. These spasms can be excruciating and limit mobility to the point of being non-existent. Lockjaw or tetanus is also known to cause stiffness in the back, abdomen, and legs. It can easily be triggered by things like a draft, light sounds or loud noises. It is most often treated with muscle relaxers and with a tetanus vaccine to prevent re-infection.

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