The organization also runs long-term medical programs and treats patients with infectious diseases such as HIV/AIDS, malaria,and tuberculosis. Besides providing medical assistance, MSF volunteers have brought the concerns of their patients to the attention of governments and the United Nations, and they have spoken out against violations of international humanitarian law. Once Kouchner was told by a prominent world leader:''Thank for intervening in matters that don't concern you.'' in 1999, Doctors without Borders was awarded the Nobel Peace Prize.