how old do you have to be to get your booster shot
Booster shots enhance, or boost, tetanus immunity. They ensure that you continue to be protected. In some cases, your doctor may give a booster dose after fewer than 10 years â for example, if you get a severe cut or puncture wound, and it has been more than five years since your last tetanus shot. I think intravenous drug abusers should get tetanus shots every five years.