Elevated BAFF levels are associated with the recurrence of diseases like systemic lupus erythematosus (SLE) and Sjogren’s syndrome, particularly after undergoing Rituximab therapy.8,9 Rituximab is a monoclonal antibody that targets CD20 and is frequently used to treat autoimmune diseases. Here, TNFSF13B is linked to systemic lupus erythematosus.