<p>My name is Nozibele Mayaba, and I am HIV-positive.<br>I am a devout Christian who did everything by the book: worked hard, got good marks, found a steady job and helped to make life better for my family. In our neighbourhood, I was the girl other parents pointed to as a role model. Until a few months before my diagnosis at age 22, I was a virgin.<br>Women like me don't get HIV. But then I did.<br>It took me years to accept my new reality. Spea...