XK and infection: Interestingly, a human natural infection with an A(H1N2) reassortant virus harbouring gene segments from seasonal influenza A(H1N1)pdm09 virus (HA and NS) and A(H3N2) virus (PB2, PB1, PA, NP, NA and M) was described as recently as March 2018, by Meijer et al. [15].