As part of the Department of Health and Human Services, the Centers for Disease Control and Prevention uses PEPFAR funding to implement its Global AIDS Program (GAP). GAP works with highly trained physicians, epidemiologists, public health advisers, behavioral scientists, and laboratory scientists in 29 countries, who are part of USG teams implementing PEPFAR. Through partnerships with host governments, Ministries of Health, NGOs, international organizations, U.S.-based universities, and the private sector, GAP assists with HIV prevention, treatment, and care; laboratory capacity building; surveillance; monitoring and evaluation; and public health evaluation research.