Born deaf, the 1-year-old boy had never responded to sound or speech before. But after receiving an experimental treatment injected into one of his ears, he started turning his head when his parents called his name. Five months later, he spoke his first words.
The boy is one of six children with a type of hereditary deafness who are part of a gene therapy trial in China. Five of the children can now hear, according to results reported today in the scientific journal The Lancet. The news follows an announcement this week that yet another child born with profound deafness can hear after receiving a
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