Exposure to the Epstein-Barrow virus
Epstein-Barr virus I guess!
The prevalence ranges from 1: 250 in African American women to a prevalence of 1: 1000 to 1: 10,000 in other populations.
The number is quite weird.African-American are protected against it.So, there must be some strong immune control.
RE: IMPROVING HEALTH OF STEEMIANS #20- Systemic Lupus Erythematosus (LUPUS)