The child then has no normal gene at that locus but two Usher genes. A few families with typical Type 2 symptoms do not have the gene in this region, implying that there is another locus. No gene has yet been located for Type 3. Even when people appear to have the same clinical subtype, the genes causing the condition may be different. This is much like having a measles-like rash which can be caused by many different viruses including those which cause regular measles and German measles.
Every state has a deaf-blind project grant within the state department of education.
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