Original
There is primary and secondary vascultis, I have primary, I was born with it and my grandfather had a type of vasculitis and my daughter has a type of vascultis so for us it is a genetic disease that runs in the family.
But there are people who get it a form of blood infection (vascular tis) as a passing illness and many have it as a disease without any familiar connection. Although risk rheumatological disease is higher when someone in the family has one