Quoted By:
>Google the disease that Kunai and Kyo have
>Any of the following can increase your odds of having it
>Being of Jewish (especially Ashkenazi Jewish) heritage
>Familial dysautonomia is seen almost exclusively in Ashkenazi Jews and is inherited in an autosomal recessive fashion.
>Both parents must be carriers for a child to be affected.
>The carrier frequency in Jews of Eastern and Central European (Ashkenazi) ancestry is about one in 30, while the carrier frequency in non-Jews is unknown.
>If both parents are carriers, a one in four chance exists with each pregnancy for an affected child.
>Genetic counseling and genetic testing are recommended for families who may be carriers of familial dysautonomia.
