Vitamin C for preventing and treating tetanus.

Tetanus is a severe infection that can be prevented by vaccination. In developing countries vaccination coverage is not always high and in developed countries cases may still occur, particularly in elderly people owing to their reduced immunoprotection. It has been estimated that there are about one million cases of tetanus per year globally. In animal studies, vitamin C protected against various infections. In a study with rats, vitamin C protected against tetanus toxin.