On a regular vaccination, I've been handled by an unprofessional staff, who ( while preparing the injection needle) touched her hands 2 times to the injection needle (staff wore the gloves, but they were for sure non-sterile, due the fact that she was touching visitor's stuff with same gloves).
So, I have a generic medical question - what are the possible/worst risks associated when a person is shot with non-sterile (contaminated) injection needle, and what should be done by the victim after that fact?