CD40 and malaria: Moreover, in an independent experiment (n = 10 Malian children) T-bethi B cells of malaria-exposed children expressed markers that are known to be associated with atypical MBCs, with higher surface expression of FCRL5, CD11c, CXCR3 and CD95, and decreased expression of CD35, CD40, CXCR5 and CCR7 [5, 18] (Fig 3).