In the context of HIV prevention, it can be fertile soil for HIV spread, we will not address the interpreted to include measures to prevent the true roots of the HIV pandemic. [...] Primary HIV prevention reduces the risk of Undoubtedly, a better understanding of these acquisition of HIV infection and thus limits its spread factors is an important component of HIV research in a population. [...] Though prevention is clearly critical in available to HIV prevention for several reasons: controlling the HIV epidemic, across Canada it has not always been accorded the high priority many 1. The role of individual, community, societal and believe it requires, in part due to lack of effective environmental factors in the causal pathway for leadership in promoting prevention and the HIV acquisition [...] The selection of the most Centers for Disease Control and Prevention have effective and most efficient intervention mix will developed such interventions in the context of their require careful analysis and a certain degree of Dissemination of Effective Behavioral Interventions objectivity. [...] The benefits are greatest in populations at risk, determining HIV incidence and countries with high rates of HIV infection and prevalence, patterns of risky behaviours and access low rates of circumcision and its role in reducing to, and acceptability of, proposed interventions.