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Gene Therapy is Facing its Biggest Challenge yet


Grajevis Bakatunkanda’s mother knew the signs: when her son lost interest in dinner, that meant the pain was on its way. It would strike, like clockwork, nearly every week. Soon the shy, skinny boy would be at the hospital near their home in the Democratic Republic of the Congo, where doctors would provide morphine for the pain and invariably diagnose him with malaria.

It turns out the doctors were wrong. The culprits were not parasites, but Bakatunkanda’s own red blood cells. Normally soft and springy, some of the boy’s cells were becoming deformed and stiff, like splinters of wood. They would lodge in his capillaries, choking the blood flow to vital organs and sending waves of crushing pain into his back and chest.