Activists, politicians and health officials are among those marking World AIDS day.
In Beijing, dozens of official volunteers passed out AIDS leaflets while a small group of activists demanded more government recognition and help.
The U.S. plans to give South Africa $120 million. President Jacob Zuma's goal is to get 80 percent of people who need AIDS drugs on them by 2011. His predecessor promoted beets as a treatment.
Health and Human Services Secretary Kathleen Sebelius says there is still much work to do but World AIDS Day is a time to recognize accomplishments and set new goals.
Dr. Anthony Fauci, head of the National Institute of Allergy and Infectious Diseases, says researchers are closer than ever to having a vaccine.
Secretary of State Hillary Rodham Clinton says President Barack Obama is repealing the HIV entry ban, which prevented people with HIV/AIDS from entering the U.S.
AIDS Activist Christopher Wade says the world needs a more unified global response.