The incidence of infantile<unk><unk>  is approximately 400 per 100,000 individuals worldwide and it is four times more common in males. It usually affects individuals of the Caucasian race. Asians individuals are less likely to develop infantile<unk><unk> . The prevalence of infantile<unk><unk>  in the course of 11 years (1989-1999) was approximately 7.3 per 100,000 individuals in one study. It is observed that the mortality rate of<unk><unk>  is very low and usually results from delays in diagnosis that causes severe dehydration and shock.
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