After an injury, especially if it involves a deep cut, puncture wound, or contact with soil or rust, it is recommended to get a tetanus shot as soon as possible. A tetanus shot is a vaccine that protects against tetanus, a serious bacterial infection caused by Clostridium tetani. The bacteria produce a toxin that affects the nervous system, leading to painful muscle contractions, stiffness, and spasms, particularly in the jaw and neck muscles, a...
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