Tetanus is not contagious. Tetanus can be prevented through vaccination, and it is currently the only non-contagious disease that can be prevented by vaccines. Typically, the DTP (diphtheria, tetanus, and pertussis) combination vaccine is used. The immunization schedule includes injections at the age of 3, 4, 5, and 18 months after birth, with a booster shot at the age of 6 years. Such a schedule can provide long-lasting immunity, generally maintaining protection for over 10 years. In cases of wounds suspected of being contaminated with tetanus, passive immunization should be performed promptly. Typically, tetanus antitoxin or tetanus immunoglobulin is chosen, ideally administered within 12 hours, though it can still be effective if given after this time.