Ideas in this flowchart

• Epstein–Barr virus may have differing roles in autoimmune disorders.
• The virus is suspected to contribute to some autoimmune disorders.
• Multiple sclerosis is one suspected associated disorder.
• Systemic lupus erythematosus is another suspected associated disorder.
• In type 1 diabetes mellitus, the virus might instead have a protective role.
• Clinical studies suggest this possible protective role.
• Experimental studies also suggest this possible protective role.
• The possible protection concerns islet cell autoimmunity.