Recommended composition of influenza virus vaccines for use in the 2020 - 2021 northern hemisphere influenza season

28 February 2020

It is recommended that quadrivalent vaccines for use in the 2020 - 2021 northern hemisphere influenza season contain the following:

Egg-based Vaccines

an A/Guangdong-Maonan/SWL1536/2019 (H1N1)pdm09-like virus;

an A/Hong Kong/2671/2019 (H3N2)-like virus;

a B/Washington/02/2019 (B/Victoria lineage)-like virus; and

a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.

Cell- or recombinant-based Vaccines

an A/Hawaii/70/2019 (H1N1)pdm09-like virus;

an A/Hong Kong/45/2019 (H3N2)-like virus;

a B/Washington/02/2019 (B/Victoria lineage)-like virus; and

a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.

It is recommended that trivalent influenza vaccines for use in the 2020 - 2021 northern hemisphere influenza season contain the following:

Egg-based Vaccines

an A/Guangdong-Maonan/SWL1536/2019 (H1N1)pdm09-like virus;

an A/Hong Kong/2671/2019 (H3N2)-like virus; and

a B/Washington/02/2019 (B/Victoria lineage)-like virus.

Cell- or recombinant-based Vaccines

an A/Hawaii/70/2019 (H1N1)pdm09-like virus;

an A/Hong Kong/45/2019 (H3N2)-like virus; and

a B/Washington/02/2019 (B/Victoria lineage)-like virus.

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