Ball LJ, et al. - Researchers examined there is a relationship between sharing injection drug preparation equipment (IDPE) and HIV infection. They administered a comprehensive questionnaire and HIV testing to 35 HIV-infected (cases) and 84 HIV-uninfected (controls) individuals with a history of injection drug use and residence in London. Among those who inject drugs, they noted sharing of IDPE is a risk factor for HIV infection in regression analysis, even without needle/syringe sharing. Findings emphasize the urgent necessity for harm reduction interventions to reduce HIV transmission associated with this practice.