Extrafollicular CD4 T cell-derived IL-10 functions rapidly and transiently to support anti-Plasmodium humoral immunity. - Surette FA; Guthmiller JJ; Li L; Sturtz AJ; Vijay R; Pope RL; McClellan BL; Pack AD; Zander RA; Shao P; Lan LY; Fernandez-Ruiz D; et al. (PLoS pathogens, 2021)