Bites
To see a bite in a dream represents a negative influence or problem that may have gotten to you. Something corrupting your happiness or good intentions. A person, problem, or bad habit has "gotten to you." The severity of the bite reflects how effective or devastating this influence or problem was.
To dream of being bitten represents your vulnerability to negative influences or bad habits. You may have succumbed to temptation or bad habit. You might also be pestered by a problem or obstacle. The dream may be indication that you have bitten off more than you chew or that you've finally gone over the line. Perhaps you need to be more responsible or careful.
A non-serious bite may represent a person or situation that has attempted to negatively influence you or lure you. Alternatively, it may reflect a close call you've experienced due to a bad habit.
To dream of being bitten by a vampire represents a person or situation that you feel is parasitic to your wellbeing. You may feel used or that this negative influence is too powerful to overcome. A sign that you need to stand up for yourself in some area of your life.