JOHANNESBURG, 6 Apr 2006 (IRIN/PLUSNEWS) - HIV/AIDS activists have expressed concern that testimony by former South African deputy president Jacob Zuma, who is standing trial for rape, might reverse the gains made in creating awareness about the pandemic.A 31-year-old HIV positive activist has alleged that Zuma raped her at his home in Johannesburg in November 2005. Zuma has claimed that he had consensual sex with the complainant, and told the court this week that he did not use a condom because he believed that the risk of a man contracting the virus from a HIV positive woman was "minimal".Soul City,...