Â鶹ԼÅÄ

Glenda Gray is a South African paediatrician and world-renowned scientist who has long been at the forefront of the fights against HIV-AIDS. She describes the momentous change in the early 2000s when her clinic in South Africa finally got access to the drugs that could treat patients infected with HIV.

Image: Dr Glenda Gray
Credit: MUJAHID SAFODIEN/AFP/Getty Images