translation.en: Australia and Switzerland were two countries which introduced harm reduction very early on in their HIV epidemics, and they have a very low rate of HIV among injecting drug users.
translation.zh: 澳大利亚和瑞士， 这两个国家在爱滋病毒传播的初期， 就推出减低伤害的法律环境， 它们的毒品注射者感染爱滋病 的机率非常低。