In terms of genetic basis, how are most autoimmune diseases classified?

Answer

Overwhelmingly polygenic or multifactorial

The vast majority of autoimmune diseases are considered polygenic or multifactorial, meaning numerous genes across the genome contribute a small, individual impact to the overall risk.

In terms of genetic basis, how are most autoimmune diseases classified?
Geneticsdiseasecauseimmune systemautoimmunity