Just got my wisdom teeth removed so I have an open wound in my mouth. I was in the car when my paper towel I was using to wipe my face dropped on the dirty car floor. No visible dirt on the paper towel but I used it to wipe my mouth and it got on my tongue a little bit. I am freaking out that the dirt on the car had tetanus on it and transferred to the paper towel and then got into my open wound. Is this possible? I believe I was vaccinated for tetanus but I don’t remember