Source: https://www.statnews.com/2019/09/30/...r-this-winter/

Flu vaccine selections may be an ominous sign for this winter
By Helen Branswell
September 30, 2019

snip

The strain selection committee concluded the H3N2 and B/Victoria viruses needed to be updated because the ones used in the Northern Hemisphere vaccine didn’t match the strains of those viruses that are now dominant. Influenza epidemiologist Dr. Danuta Skowronski described the significance of those two changes in one word: “mismatch.”...