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The story of a young mother who unwittingly left behind a vast medical legacy. Henrietta Lacks died of cancer in Baltimore in 1951 and though she never gave consent to her tissue being used for research, doctors at the time found that her unusually virulent tumour had extraordinary properties. As her cells multiplied in labs around the world, they helped make possible all sorts of medical breakthroughs, from the polio vaccine to cancer drugs and IVF treatment. But it took the Lacks family decades to discover what was going on, and the story raises questions for all of us – about medical ethics, institutional racism, and our right to privacy.

Joining Bridget Kendall to discuss this remarkable story are: Henrietta Lacks' grandson David Lacks Jnr who's on the board of the HeLa Genome Access Working Group; the award-winning science writer, Rebecca Skloot, whose book The Immortal Life of Henrietta Lacks brought the story to the world's attention a decade ago; and Sir John Burn, Professor of Clinical Genetics at Newcastle University.

Produced by Jo Impey for Â鶹Éç World Service

Image: Henrietta Lacks
Image credit: Lacks Family