Acquired Immune Deficiency Syndrome, or AIDS, is a fatal infectious disease without a cure. Many children are born with the disease, with it being transmitted from their infected mothers. These children often grow up alone and face discrimination, but one doctor in north China's Shanxi Province quit his job to help, becoming a father to AIDS orphans. He is 58-year-old Guo Xiaoping, who was the head of the local infectious disease hospital in the city of Linfen. Seventeen years ago, he started helping children battling HIV. As a member of the Communist Party of China, he believes it's his duty to help these kids.