Keren Dunaway was 5 when her parents used drawings to explain to her that they both had the HIV virus _ and so did she.

Now the 12-year-old is one of the most prominent AIDS activists in Latin America and a rarity in a region where few children are willing to break the silence and tell their classmates they have HIV for fear of rejection. She edits a children's magazine on the virus.

On Sunday evening, Keren shares the stage with the Mexican president and U.N. Secretary-General Ban Ki-moon as they open an international AIDS conference.

She flashes a dimpled smile, exposing a row of braces, and settles comfortably into her chair before expertly fastening on a microphone. She talks matter-of-factly about the virus she has had since birth.

"It's like a little ball that has little dots, and is inside me, sort of swimming inside me," she said in an interview with The Associated Press, curling her fist as she recalls what her parents explained to her with drawings long ago.

Keren's openness about her HIV status comes as the virus's victims grow increasingly younger.

Worldwide, people ages 15-24 accounted for 45 percent of people infected with HIV in 2007, according to the 2008 U.N. AIDS report.

In Latin America, 55,000 of the nearly 2 million people with the virus were under 15 years old, the vast majority of them infected by their mothers. Only 36 percent of pregnant women in the region receive medicine to prevent transmission, although that is an increase of 26 percent since 2004.

And while more than 60 percent of the adults with HIV receive antiretroviral drugs in Latin America, only about one-third of children do. Experts say less research and funding has been dedicated to medicine for HIV-positive children, who require smaller doses and additional medication to offset the aggressiveness of antiretrovirals.

Even so, children born with HIV are increasingly looking forward to long lives.

"There's a whole new generation of young people that were born with HIV that are reaching adulthood. It presents very interesting challenges," said Nils Katsberg, UNICEF'S director of Latin America and the Caribbean.

It won't be easy encouraging HIV-positive children to speak out in Latin America, where talking openly about sexuality is often taboo.

When she first started school, Keren's classmates refused to play with her. Speaking out about HIV made all the difference. At 9, she began accompanying her parents _ founders of the AIDS advocacy group "Llaves" _ on talks to schools. She has visited half-a-dozen countries to share her story.

Last year, she started up "Llavecitas," a children's version of a magazine her parents publish. The Llaves foundation distributes 10,000 copies every two months across Honduras.

But too often, children with HIV "live in a culture of secrecy," said Maria Villanueva Medina, a psychologist with Casa de la Sal, a group that runs an orphanage for children with HIV in Mexico City.

"They can't talk about their diagnosis in the school because they can be kicked out. They can't talk about it in their communities with their neighbors." Continued...