On October 5, 2012, the Supreme Court of Canada released important decisions in two cases of HIV non-disclosure; namely, R. v. Mabior and R. v. D.C. Mabior is a man who had sex with several women without disclosing his HIV-positive status. D.C. is a woman who had sex with her abusive former partner once before she disclosed her status. None of the complainants in these cases became HIV-positive.
This is a summary of the decisions; a longer analysis is also available.