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

向注射毒品者提供清洁注射设备是一项至关重要的减少危害干预措施，有助于减少血源性病毒的传播。充分满足PWID需求的水平被称为“覆盖率”，本研究的目的是研究覆盖率的变化如何随着时间的推移影响PWID风险行为和健康结果。该项目将为减少危害和今后实施的证据基础作出重要贡献。

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.