At the Ottawa conference in January 2008:

A round table discussion at this conference on the current status of microbicide research revealed that no microbicidal products available to date have proven to be effective against the spread of HIV and AIDS, a conclusion that is supported by statements from the World Health Organization.

And also:

By attending and participating in the symposium and the subsequent meetings, the Company found support for continuing its investigation of T36(R) Microbicide as a means of preventing the spread of HIV and AIDS.