i have no vaccination scars. my dad would not allow us to be vaccinated as kids. not even for smallpox or polio. not a religious thing, just backwards. he wouldn't buy us a tv until i was in grade school and then only because he found out tarzan was on saturday afternoons. he used to pay a dime every saturday as a kid in las animas, just to watch tarzan, so he felt like he was saving money there. i did have a couple of tetanus shots while in college. ---s6 ps--and no, i have never thought to get the vacs as an adult. something about needles makes me squeamish. don't have a tv neither.