No, internal access to your body is required. The key diseases that are blood borne include HIV, Hep B/C and syphilis. They will generally require quite direct access to your blood stream for a chance of infection.
Ok thank you for writing and for replying to my other post! In regards to that, would you still maintain that it was no risk even if a part of my finger near my nail was exposed, bare, and reddish (possibly a little bleeding) from biting my nails/picking my fingers? Sorry if I am probably overly paranoid