A filmmaker who won an Oscar for a documentary about orphans of Chinese AIDS patients says Beijing is now more open about the disease after being accused of covering up the 2003 SARS outbreak.

"Since 2003, after SARS, they're open about it. I would say they're not doing it for show," said Ruby Yang, who won an Oscar last month for her 39-minute documentary, "The Blood of Yingzhou District."

China had been accused of covering up the outbreak of SARS, or severe acute respiratory syndrome, which killed 349 people there and 774 worldwide.