Errors occurred in the article by Martinón-Torres F et al, titled “Meningococcal B Vaccine Immunogenicity in Children With Defects in Complement and Splenic Function” published in the September 2018 issue of Pediatrics (2018;142[3]: e20174250; doi: 10.1542/peds.2017-4250).

Supplemental Figs 4 and 5 erroneously added the numbers of participants with severe reactions to the total number of participants. The authors prepared an alternative presentation which gives the percentage of participants with severe reactions above the relevant columns.

The above correction has been made to the online article.