Tetanus is a serious bacterial infection caused by the bacterium Clostridium tetani. This bacterium is commonly found in soil, dust, and animal feces. When it enters the body through wounds or cuts, it produces a toxin that affects the nervous system, leading to muscle stiffness and spasms, particularly in the jaw and neck. The symptoms of tetanus can develop within days to weeks after infection. Vaccination is the most effective way to prevent tetanus, with the DTaP vaccine recommended for children and booster shots for adults every ten years. Prompt medical treatment is crucial for those infected.