[Drew]

Well actually have been bitten but they were not vampires, just angry bitches, or very turned on ladies....... don't like getting bitten so never asked.

...Sorry am lying...I know why they bite and scratch your back bloody. It's  to mark you and let everybody else know you are property. Would prefer a vampire, at least then you may become immortal.

I have read the same information Steve has. In addition, A type blood seems to be more susceptible and also those with a + Rh factor.

Interesting, I'm o positive but have just caught the flu. Really is only the normal flu, but people are so scared of me now 
Sorta understandable.