Correction to: Nature Immunology https://doi.org/10.1038/s41590-019-0406-1, published online 17 June 2019.

In the version of this article initially published, the right two labels along the horizontal axis of Fig. 8c (IntA and IntG) were in the incorrect order. The correct order is IntG (middle right) and IntA (far right). The error has been corrected in the HTML and PDF versions of the article.