(adsbygoogle = window.adsbygoogle || []).push({}); Since there has been this twilight/vampire craze shit, it's led me to wondering a couple of things:

1. If vampires drink blood, then why don't they die from AIDS?
   
   
2. Why do they have to be staked through the heart to be killed?
   
   
3. Does their body have the same immune system as a mosquito?
   

any clarity to this topic is much appreciated.