 [ Symptoms ] how long is a tetanus shot good for  last tetanus shot was in aug 2003 the reason for the inquiry is i scraped my finger didnt bleed on a shelf at a hy vee food store is the tetanus shot good for 10 years or do i need to immediately go and get one now as today is 72 hours after incident the wound is a small scratch like you would get from a cat or am i covered until this august which would be 10 years [ Disease ] the best answer would be to wait until both partners have been sucessfully treated and you have a negative test result if not it would be best to wait a week and remember to always use condoms