The prevalence of Pelizaeus-Merzbacher disease is estimated to be 1 in 200,000 to 500,000 males in the United States. This condition rarely affects females.
How many people are affected by Pelizaeus-Merzbacher disease ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by Pelizaeus-Merzbacher disease ? [/INST] \n The prevalence of Pelizaeus-Merzbacher disease is estimated to be 1 in 200,000 to 500,000 males in the United States. This condition rarely affects females.</s>