Find them yourself, it won't be hard...aids spreads through all of the above, including vaginal intercourse, anal sex, and the sharing of needles...to suggest otherwise is foolish.
People should abstain from sex until marriage or wear condemns if the choose to have premarital sex. Duh.
If you can't produce them, just be honest and say so.
You made the cliam Jackass, why should he prove your negative?