Recommended composition of influenza virus vaccines for use in the 2018-2019 northern hemisphere influenza season

World Health Organization
February 22, 2018

WHO convenes technical consultations in February and September each year to recommend viruses for inclusion in influenza vaccines for the northern and southern hemisphere influenza seasons, respectively. This recommendation relates to the influenza vaccines for use in the forthcoming northern hemisphere 2018-2019 influenza season.

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