“…Reports of PO injection have risen worldwide, including in the United States (Davis and Johnson, 2008;Young et al, 2010;Surrat et al, 2011;Lankenau et al, 2012;Black et al, 2013;MateuGelabert et al, 2015), Europe (Partanen et al, 2009;Keijzer and Imbert., 2011;Roux et al, 2011), South Asia (Larance et al, 2011) and Australia (Degenhardt et al, 2006). In Canada, over the past decade, PO injection has gained in popularity among drug users across the country (UHRI, 2013; Leclerc et al, 2013;Firestone and Fischer, 2008;Roy et al, 2011;Roy et al, 2013;Bruneau et al, 2012;Fischer et al, 2006;PHAC, 2014).…”