Tetanus is an acute specific infection caused by the growth and proliferation of Clostridium tetani bacteria in human wounds, producing toxins. Tetanus is a Gram-positive anaerobic spore-forming bacillus. One type of tetanus vaccine is DTP, which includes diphtheria, tetanus, and pertussis and is administered in childhood. It requires three doses and generally maintains effectiveness for five to ten years. Subsequently, a booster shot can be administered every five to ten years. If a new wound occurs and it's associated with tetanus, the duration of tetanus maintenance in the human body is generally five to six days, after which it is quickly cleared.