Videos / 3 December 2017 Chasing the dragon, stalking a virus: Life, heroin and Tshwane’s needle exchange By Dylan Bush FacebookXEmailLinkedInWhatsApp This programme is saving heroin users on the streets of Tshwane This programme is saving heroin users on the streets of Tshwane, one clean needle at a time. Tags: Dylan Bush, Harm Reduction, Heroin, Needle Exchange, Opioid Substitution Therapy, OST, Video