Correction to: npj Vaccines https://doi.org/10.1038/s41541-021-00350-3, published online 15 July 2021

In the original version of this Article, incorrect information about the supplier was included in the Methods for antibodies IgM, IgY and IgA. Instead of Abcam it should have been Life Technologies, Bio-Rad and Life Technologies, respectively. The HTML and PDF versions of the Article have now been updated with the correct information.