Tetanus enters the body through cuts in the skin. It can get in through even a tiny pinprick or scratch, but it prefers deep puncture wounds or cuts, like those made by nails or knives. Children can also get tetanus following severe burns, ear infections, tooth infections, or animal bites. Rusty nails are often blamed for causing tetanus, but is the tetanus bacteria, and not rust, that causes the disease. You can get tetanus from a shiny nail as easily as from a rusty one.As with the diphtheria vaccine, tetanus vaccine is really a toxoid, which protects against the toxin produced by tetanus bacteria.Recently a second tetanus vaccine, Tdap, was added to the schedule for adolescents. It is recommended that adolescents receive this vaccine instead of Td.