In a case before the Ontario Superior Court this month, an Ottawa man is challenging the ban on blood donation by gay men. Currently, any man who has had sex with another man since 1977 is “indefinitely deferred” from giving blood. Not only is this ban unnecessarily broad, it does a disservice to the very people it is supposed to protect.
The reasoning behind the ban is that gay men in Canada account for 60 percent of HIV-positive people, and for nearly half of new infections. All blood collected by Canadian Blood Services is screened for HIV, but the justification for the indefinite deferral of gay men is that the virus is not immediately detectable after infection—it can be several weeks before it shows up on a blood test. Clearly, these are compelling arguments for caution.
Toronto sexual health clinics deal with the issue of detection by waiting three months after a risky sexual encounter to confirm a negative result. Blood agencies in some countries subject gay men and other high-risk groups to a six- or twelve-month deferral period after last sexual contact to make sure the results of screenings are accurate. So why have CBS and Health Canada refused to rethink the total ban?
