Christina is a journalist and author in South Africa, where she coordinates SciDev.Net's contributors from 40 sub-Saharan Africa countries. Previously editor of the South African Broadcasting Corporation's science desk, she launched award-winning weekly television and radio science programmes and continues to do live radio. Christina mentors African reporters through the World Federation of Science Journalists. Her latest book, published by Heinemann, is aimed at promoting health in children and teens across Africa.