Comparison between the UN and NEPAD in the HID/AIDS from the development view

its required from me to write a paper about any issue in the united nation and any other regional orginzation and compare between them in both orginzations ( the UN and i chose NEPAD ) NEPAD is in the african union . the issue i chose is the HIV/ AID , i would like to write a good introduction of why is it important this issue ( the reason why i chose it) any statistcs are recommended ! please do not forget to cite anything taken from any website or book!
you can give a brief about HIV/AIDS and the effects , and how people should be aware
you can give a small brief about each organization , and how do they care about this issue!!

the writer must do these steps:
A) SUMMARY AND INTRODUCTION (EXPLAIN THE REASONS BECAUSE YOU CHOSE THE THEME)
B) EXPLAIN THE THEME, PROBLEMS INVOLVED ON IT AND MAIN CHALLENGES FOR DEVELOPMENT