[The Conversation Africa] Thembi Ngubane was a young woman who became famous through the American National Public Radio show Thembi's AIDS Diary: A Year in the Life of a South African Teenager.. She was vibrant, punchy, full of life. She recorded the consultation when, as a doctor, I started her on antiretroviral therapy in 2005. Jo Menell's documentary film, Thembi, gives a sensitive and nuanced account of her fast rise to fame, culminating in meeting Barack Obama and addressing the US Congress, and then equally rapid fall into ob