“The potential for antiretroviral medicine to reduce transmission of HIV and tuberculosis has been demonstrated, but the challenges of using treatment to prevent infection will need to be tackled country by country, and with focus on people for whom it will have the biggest impact, the latest bulletin on HIV treatment from the World Health Organization says,” the Center for Global Health Policy’s “Science Speaks” blog reports. “WHO’s June 2012 Antiretroviral Treatment as Prevention (TasP) of HIV and TB Programmatic Update is the latest of a series of documents the organization says will lead to a completed set of guidelines on treatment and prevention in July 2013,” the blog reports, noting, “The organization also plans to release new recommendations in time for the July International AIDS Conference, addressing the preventative use of antiretroviral medicine by people who are uninfected but potentially exposed to HIV, including those involved in commercial sex work, in ongoing relationships with infected partners, and men who have sex with men” (6/18).