Author Correction: Selenium-GPX4 axis protects follicular helper T cells from ferroptosis.

In the originally published version of this Article, there was an error in Extended Data Fig. 10c. Specifically, in Extended Data Fig. 10c, third panel to the right, the y-axis label (In CD4+ cells (%)) was incorrect. The correct label has been amended to read: “In CD4+ CXCR5+cells (%).” The change has been made to the online version of the Article.