Updates are available Erratum dated 2016-03-22

Article History

First Online: 20 October 2015

Change Date: 7 January 2016

Change Type: Erratum

Change Details: In the version of this Research Highlight initially published, only the work of Gao <i>et al</i>. (<i>Proc. Natl. Acad. Sci. USA</i><b>112</b>, 12903–12904 (2015)) was discussed. This has been revised to include discussion of another article with very similar data published a few weeks earlier, by Gray <i>et al</i>. (<i>J. Immunol.</i><b>195</b>, 1939–1943 (2015)). The error has been corrected in the HTML and PDF versions of the article.