The incubation period for tetanus typically ranges from 3 to 21 days following an injury, with an average of 10 days. However, this period can vary significantly, from as little as one day to several months, depending on the nature of the wound. Wounds involving severe tissue damage or contamination tend to have a shorter incubation period. A shorter incubation period often correlates with a more severe disease course and a less favorable prognosis.