I guess that question is for me.
There are two points to your question. The first point has to do with the last part of your question, and it's the case not only for organ, cell, and tissue donation, but also for blood donation.
When we assess the risk in a given donor, we work from the principle that we don't assess the risk that is specific to this individual. We assess the risk that exists in a group of individuals to which this person belongs. Of course, a given person is either infected or he or she is not infected. Ideally, you would want to have that information, the exact information, on hand when you determine whether a donor is eligible or not for whatever type of donation.
We don't have that. We have to work with basic information. One is, does this person engage in certain types of behaviour that puts them at risk? One of the types of behaviour we are looking for—and this is a very wide consensus in the community—is men having sex with men. So that is the basic issue.