Infected man takes safety message to campuses

On a rainy Sunday, 30-year-old engineer Xiao Qiang began a lecture in a university hall packed with more than 300 students:

"I am a gay man, and I'm HIV positive."

Infected during his college years around 2005, Xiao is also a volunteer for a local anti-AIDS society. He decided to stand up to AIDS and empower the young with the knowledge necessary to guard themselves against it.