Some yes,some not! Certain diseases considered autoimmune occur more frequently in one racial group compared to another, and even within certain nationalities within a specific race. Sarcoidosis, sle, and gout are more frequent in blacks. Spondylitis, psoriatic arthritis and psoriasis are more likely in caucasians. American blacks have a 20-30% mixture of caucasian genes, and different in immune probs than africans.