A nine-year-old girl has been living for 8.5 years after being infected with the human immunodeficiency virus (HIV), without taking medication. The case was reported by researchers at the 9th HIV Research Conference of the International AIDS Society .
Usually, to suppress the spread of the virus, a person with HIV infection must take antiretroviral drugs for life. The girl in the report was born to an HIV-positive mother who was not taking medication and received antiretroviral therapy at 2 months. She stopped being treated when she was 11 months old.
Since then, she has been undergoing tests every year, which revealed that the virus is still in her immune cells, but it is not active - that is, it does not spread. The girl has no known genetic mutations that would protect her from HIV infection, so scientists tend to attribute this effect to early therapy.