HIV and AIDS prevention--Progress and the challenges ahead
At least 2 million people worldwide will be infected with HIV this year, driving the need for better HIV prevention strategies to slow the global pandemic. A better understanding of how to prevent HIV transmission using antiviral drugs led to approval of the first oral pill for HIV prevention, and microbicides delivered as topical gels or via intravaginal rings are in clinical testing and have yielded both positive and negative results. The complex factors involved in the sexual transmission of HIV, the urgent need for new preventive approaches, and the most promising methods currently in development are examined in a special issue of AIDS Research and Human Retroviruses, a peer-reviewed journal published by Mary Ann Liebert, Inc, publishers. The entire issue is available free on the AIDS Research and Human Retroviruses website at http://www.liebertpub.com/aid.