Oddly enough, I gave dawnguard a try just to actually see what this DLc was like. As most of you can imagine, I was disappointed to just say it kindly.

After killing our favorite Lord, I found myself with the ability to cure myself by going to see some dude in Morthal. And it involved killing someone and bringing him a black soul gem to get the process done.

So now left being ths head of yet another guild or whatever you call a castle full of vampires, I have question...does this meam if you have serana give you vampirism again, will you be able to cure again?

Yes, you can be cured of vampirism and have serana give you it as many times as you want. really hits home with the uniqueness of being a vampire eh?