Additional flow cytometry experiments were performed to assess transmembrane activator and CAML interactor (TACI) and B cell maturation antigen (BCMA) on brain-infiltrating B cells at both early (7 increasing proportion of B cells as time) and late (60 increasing proportion of B cells as time) time points post-infection (Fig. 7f). This evidence concerns the gene TNFRSF13B and infection.