Vampires were supposed to be going into extinction. Looks like that's a different story here though.
I suggest raids. Find the nests, destroy them, and leave no one alive. That might help.
[Ruby + Dean] I ran into a demon. That means that there are probably more running around here. Which also means that Lilith could be close by. I'm going to try to track another one down. Get some information. I accidentally killed the demon that I met before, so it'd be hard to ask him questions now. This knife is pretty awesome.