Understanding the impact of harm reduction program coverage on the incidence of blood borne viruses and related risk behaviours

向注射毒品者提供干净的注射设备(PWID)是一项关键的减少危害干预措施，有助于减少血液传播病毒的传播。PWID需求得到充分满足的水平被称为“承保范围”，本研究的目的是研究承保范围的变化如何随着时间的推移对PWID风险行为和健康结果产生影响。该项目将为减少危害和今后的实施提供证据基础。

The provision of clean injecting equipment to people who inject drugs (PWID) is a crucial harm reduction intervention that has helped reduce the spread of blood borne viruses. The level to which PWID needs are adequately met is known as “coverage”, and it is the aim of this study to examine how variations in coverage impacts on PWID risk behaviours and health outcomes over time. This project will make important contributions to the evidence base for harm reduction and future implementation.