Updates are available Correction dated 2018-01-08

Article History

Received: 12 July 2017

Accepted: 11 October 2017

First Online: 20 November 2017

Change Date: 8 January 2018

Change Type: Correction

Change Details: In the version of this Letter originally published, technical problems led to errors in Figs. 3e and 4f. In Fig. 3e, the bottom right graph had an incorrect title of ‘CD8+ T cells’; it should have instead been ‘CD4+ T cells’. In Fig. 4f, the bottom panels had an incorrect title of ‘CD8 competent Ifnar–/–7 d.p.i. cerebral cortex’; it should have instead been ‘CD8 depleted Ifnar–/– 7 d.p.i. cerebral cortex’. These errors have now been corrected in all versions of the Letter.

Competing interests

: The authors declare no competing financial interests.