sentences:  Turvey was recognized by the Atlanta-based Centres for Disease Control in 1993 for running the most cost-effective needle exchange program in North America.Upon his investiture as a member of the Order of Canada he was recognized as a formidable advocate for the disadvantaged, particularly youth, and was credited for bringing about changes in the Criminal Code and increased public awareness of issues concerning sexually exploited children.Two years earlier, he was recognized by admission to the Order of British Columbia for his role as an advocate for the under privileged.