Correction to: Scientific Reports https://doi.org/10.1038/s41598-017-01512-x, published online 02 May 2017

This Article contains an error in Reference 29:

‘Jose Carlos Mancera Gracia, Silvie Van den Hoecke, Xavier Saelens, Kristien Van Reeth & Mirco Schmolke. Effect of serial pig passages on the adaptation of an avian H9N2 influenza virus to swine. PLoS One 12(4), e0175267 (2017)’

should read:

‘Mancera Gracia, J. C., Van den Hoecke, S., Saelens, X. & Van Reeth, K. Effect of serial pig passages on the adaptation of an avian H9N2 influenza virus to swine. PLoS One 12(4), e0175267 (2017)’