Michel L, et al. – This study was initiated to describe patterns among people who inject drugs (PWID), risk–related behaviours and access to methadone treatment, in order to design a large–scale intervention aiming to end the HIV epidemic in Haiphong, Vietnam. The results obtained from the study indicate that heroin is still the main drug injected in Haiphong. The authors found that methamphetamine use was increasing markedly and was related to delay in methadone initiation. They discovered that drug–related risks are low but sexual risk behaviours are still present.