Approximately 3 to 6 percent of all children who are deaf and another 3 to 6 percent of children who are hard-of-hearing have Usher syndrome. In developed countries such as Canada, about four babies in every 100,000 births have Usher syndrome.
Approximately 3 to 6 percent of all children who are deaf and another 3 to 6 percent of children who are hard-of-hearing have Usher syndrome. In developed countries such as Canada, about four babies in every 100,000 births have Usher syndrome.
