Kanna Hayashi

Sex work or male-with-male sexual activity and the risks of HIV and hepatitis C acquisition among people who inject drugs: a global systematic review and meta-analysis

Background People who inject drugs (PWID) may engage in sexual behaviours that increase their HIV and hepatitis C virus (HCV) risk, including sex work and male-with-male sexual activity. We undertook a global systematic review to assess whether PWID who engage in these behaviours...

Encampment sweeps and persistent homelessness among unhoused people who use drugs in Vancouver, Canada: A prospective cohort study

Background Housing is a key determinant of health. In response to increasingly visible homelessness amid a growing housing crisis, many jurisdictions in North America forcibly displace unhoused people from public spaces, routinely confiscating their personal belongings. While pri...

Police drug seizures without arrest before and during a decriminalization pilot in Vancouver, Canada: a longitudinal analysis

On 31 January 2023, the province of British Columbia (BC), Canada implemented a three-year “Decriminalization Pilot” in response to a toxic drug supply public health emergency, which removed criminal sanctions for the personal possession of some drugs below a cumulative total of...