Correction to: Nature Immunology https://doi.org/10.1038/s41590-017-0040-8; published online 18 January 2018.

In the version of this Research Highlight initially published, the url for the linked article was incorrect (https://doi.org/10.1172/JCI90647JCI90647). The correct link is https://doi.org/10.1172/JCI90647. The error has been corrected in the HTML and PDF versions of the article.