The Center for Global Health Policy’s “Science Speaks” blog discusses how advocates, health care workers and others in South Africa are addressing gaps in access to health care and HIV prevention services for sex workers, and gay and transgender people. “The [South African] representatives who met with [a U.S. congressional delegation] last week described efforts to close the gaps: with legal advocacy, counseling, support, care, and culturally relevant information, and the work yet to be done,” the blog states (8/26).