Correction to: Genes & Immunity https://doi.org/10.1038/s41435-017-0006-8; published online 8 January 2018

Since the publication of this article, the authors have found that the numbers of patients and controls were reversed. This study included 412 MS patients and 419 controls. This correction applies to the Abstract, the final paragraph of the Introduction, and the first paragraph of the Materials and methods. This was entirely a reporting error and does not impact the Results or Conclusions.