Question: How many people are affected by familial cold autoinflammatory syndrome ?
Answer: Familial cold autoinflammatory syndrome is a very rare condition, believed to have a prevalence of less than 1 per million people.
Source: GHR

Question: Is familial cold autoinflammatory syndrome inherited ?
Answer: This condition is inherited in an autosomal dominant pattern from an affected parent; one copy of the altered gene in each cell is sufficient to cause the disorder.
Source: GHR