Of those who donated along these rules, none tested positive for HIV. In 2020, it was revealed that when the ban was shifted from a lifetime to five years to one year, it had “no substantial effect whatsoever” and that Health Canada knew these changes would impact only a “small minority” of the ineligible population. In addition, in documents obtained from Health Canada, Canadian Blood Services, and Héma. To detect HIV within 12 days after infection, while CBS currently estimates the risk of undetected HIV-positive blood being introduced into the blood supply at one in eight million. Of Canadians living with HIV acquired it through heterosexual sex. Québec have long cited needing more research to disprove the restrictions, but despite there having been much of that over the years, the ban has remained firm.
