IL3 and malaria: During malaria infections, splenic macrophages play a crucial role in sustaining the production of granulocyte–macrophage colony‐stimulating factor (GM‐CSF) and interleukin‐3 (IL‐3) by specific subsets of IgM+ and IgG+ B1b B cell plasmablasts, showcasing their significance in the immune response to malaria [105].