I don't know about you, but I am taking NO chances here! Samwell discovered that obsidian is the best defense, so I've acquired a small stock of obsidian arrowheads and even some "Apache Tears"--obsidian drops--I need to do more research, but I have the feeling that stuffing the drops into their mouths, if you didn't have a sharp point about you, might also work.
Meanwhile, here are some photos of my anti-vampire armaments. I suggest that you take some of the same precautions.
