Not sure how new this news is, but I had not heard about a breakthrough in AIDS research which found that a common acne drug first used in the 1970s can keep HIV dormant. I first read about this in Brenton's popular blog, Aussielicious this morning. And after a bit of searching on Google, I found that this study was actively being discussed back in 2008 at the XVII International AIDS Conference.
As Brenton says in his blog, any advancement that can help prevent the spread of or help improve the quality of life of those impacted by this virus is good news. If you'd like to learn more there is a brief (1 minute) video of Dr. Janice Clements explaining what the acne drug minocycline does to the virus here.