Not sure why that's relevant. The cost is the same, and taxpayers pay for heart disease and cancer research even though they're not transmissible. But, if you'd like, go look at common colds which you do pass on to others by your lifestyle choices. Colds may not usually kill, but they have a devastating economic impact.
Not sure why that's relevant.
Metmom, if he doesn't see the difference, its a lost cause. Money spent on AIDS is a waste of money. The cure is already known.