In order to slow the spread of HIV, there has been a shift in tactics regarding prevention and care, reports Scientific American in a series on HIV/AIDS. One article examines treatment as prevention, specifically a successful vaginal antiretroviral microbicide trial that cut infection rates by 39 percent among South African women. A second piece looks at a shift in government policies on injection drug use from prohibition to drug treatment. Nearly 5 million people worldwide contract HIV through injection drug use. Harm reduction could lower those rates. And a third article sheds light on the “hidden HIV epidemic” of men who have sex with men (MSM). Although MSM in developing countries are 19 times more likely to be HIV positive, cultural values such as religion and homophobia have resulted in scarce research and focus on this group.

To read about the ARV drug trial in Scientific American, click here. 

To read about HIV among injection drug users, click here.

And to read about HIV and MSM, click here.