"We see hundreds, even thousands of people healed of aids in Africa, because they repent of their sin and turn to God."
Okay then. If you're sooooo sure of your claim, I'd like you to take part in this experiment:
An African child born HIV+, via their infected parents, thus a completely innocent victim of hideous circumstance. Now have that child convert to Christianity.
Then have tests conducted on samples of blood etc taken from said 'repentant' (but already innocent) child, to determine their HIV status, post-repentance.
This done, all the while you're tied to a chair, and a .50 cal. Desert Eagle pointed at your head. The one holding said gun given orders to either put the safety catch on & withdraw the weapon - or pull the trigger, upon hearing one of two things:
1- The child's HIV status is now negative (as per an uninfected person; 'sinner' or not).
2- The child's HIV status is still positive.
Your continued existence dependent entirely upon whether or not that child will either die of natural causes - after a long and happy disease-free life, or if he/she will die prematurely - even after a decade or so.
...now, you so sure you'd like to conduct the above experiment, JohnArse7?!