![KQED Science Video Podcast show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/030/952/small/kqed-quest-science-video-podcast.jpg)
Summary: Over the past 15 years, the number of people who die of AIDS each year in the United States has dropped by 70 percent. But AIDS remains a serious public health crisis among low-income African-Americans, particularly women. And in sub-Saharan Africa, the virus killed more than 1.6 million people in 2007. QUEST meets two Bay Area research groups studying innovative approaches that could lead to new treatments and possibly a cure.