Being born SCID (without an immune system) used to mean a short life encased in a plastic bubble, cut off from a world of diseases which would eventually kill you. But four-year-old Owen has proved there is hope. Two years ago, he received a bone-marrow transplant and is now entirely normal. His mother's next pregnancy was another SCID baby. Owen's new immune system made him the perfect, and the only, donor for his baby brother
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Title from resource description page (viewed January 28, 2019)