Illustration. Children sit in the yard of the "Messengers of Peace" home for abandoned HIV-positive children in San Martin, El Salvador, November 2007. Researchers say they have for the first time, cured a baby born with HIV -- a development that could heResearchers said they had, for the first time, cured a baby born with HIV -- a development that could help improve treatment of babies infected at birth. There is an important technical nuance: researchers insist on calling it a "functional cure" rather than a complete cure. That is because the virus is not totally eradicated.