Brilliant!!!!!! I love a good vampire story!!!!
That's gotta be one of the better vampire story ideas I've seen. I'm a freelance cartoonist, and I was actually thinking of doing a short vampire series using a virus scenario as well.
Just some more useless vampire info for ya. There is a new anime out in the US now called "Hellsing" and it's about vampire hunters. The head vampire in it is named Arucard instead of Alucard, and it made me think of that Dracula story you talked about. This guy is kinda crazy, but mostly because of his vampire pride and because of his lust for blood. Just thought you'd consider that food for thought on your next submission.
Other than that, the flash was great. The animation and sound could use a bit of work, but I think the story and the art make up for it. I was totally feeling the story, and the music was a kick ass choice!! Good job!!