GlobalPost’s “Global Pulse” blog examines questions surrounding the use of the antiretroviral Truvada for pre-exposure prophylaxis (PrEP) to reduce the risk of HIV infection among people at high risk, as studies released and panel discussions held last week at the XIX International AIDS Conference (AIDS 2012) “raised concerns about the drug’s effect on the future of the AIDS fight.” According to the blog, “Leaders in the fight against AIDS are trying to work through these issues and figure out the best way to make use of Truvada as prevention.” The blog notes that the WHO last week “released a set of guidelines for how to use PrEP in demonstration projects” and quotes AVAC Director Mitchell Warren, AIDS Healthcare Foundation President Michael Weinstein, amfAR Vice President and Director of Public Policy Chris Collins, and Black AIDS Institute President and CEO Phill Wilson (Judem, 7/27).