Influenza vaccine effectiveness by A(H3N2) phylogenetic sub-cluster and prior vaccination history: 2016-17 and 2017-18 epidemics in Canada

Skowronski DM, Leir S, Sabaiduc S, Chambers C, Zou M, Rose C, Olsha R, Dickinson JA, Winter A-L, Jassem A, Gubbay JB, Drews SJ, Charest H, Chan T, Hickman R, Bastien N, Li Y, Krajden M, De Serres G