“…Second, injecting drug use – a highly efficient mode of transmission – along with tattooing and sexual activity (both consensual and otherwise), are commonplace in carceral settings, and as research conducted in the UK and elsewhere has shown, sharing needles and syringes is far from unusual (Turnbull et al , 1993; Yirrel et al , 1997; Case et al , 1998). These factors – high HIV rates on entry to prison, combined with high-risk activity once inside – combine to create an environment that fosters HIV risk and transmission (Freudenberg, 2011; Chen et al , 2008). In many countries prisoners have inadequate access to either prevention information or equipment (such as clean syringes, substitution therapies or condoms; see, e.g., Elliott, 2007) that can reduce or eliminate risk, and this has led to a number of well-documented outbreaks, both of HIV and other blood-borne and sexually transmitted infections (Caplinskiene et al , 2003; Reid et al , 2012).…”