The prevalence of leukoencephalopathy with vanishing white matter is unknown. Although it is a rare disorder, it is believed to be one of the most common inherited diseases that affect the white matter.
How many people are affected by leukoencephalopathy with vanishing white matter ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by leukoencephalopathy with vanishing white matter ? [/INST] \n The prevalence of leukoencephalopathy with vanishing white matter is unknown. Although it is a rare disorder, it is believed to be one of the most common inherited diseases that affect the white matter.</s>