The recommended composition of quadrivalent influenza vaccine for Australia in 2025 introduces two new strains for the A (H3N2)-like and B Victoria lineage viruses when compared to the composition of the trivalent and quadrivalent vaccines for Australia in 2024.
In 2025 there will be Egg & Cell based Quadrivalent Vaccines available in Australia.
The Egg-based quadrivalent influenza vaccine components for the Australian 2025 influenza season will contain the following: 1
- an A/Victoria/4897/2022 (H1N1)pdm09-like virus;
- anA/Croatia/10136RV/2023 (H3N2)-like virus;
- a B/Austria/1359417/2021 (B/Victoria lineage)-like virus; and
- a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.
The Cell-based quadrivalent influenza vaccine components for the Australian 2025 influenza season will contain the following: 1
- an A/Wisconsin/67/2022 (H1N1)pdm09-like virus;
- an A/District of Columbia/27/2023 (H3N2)-like virus; and
- a B/Austria/1359417/2021 (B/Victoria lineage)-like virus; and
- a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.
Vaccination is your best defence as recommended by the World Health Organisation 2
1. Australian Government, Dept Health and Ageing, Therapeutic Goods Administration. AIVC recommendations for the composition of influenza vaccine for Australia in 2023. Found at: https://www.tga.gov.au/resources/publication/meeting-statements/aivc-recommendations-composition-influenza-vaccines-australia-2025 (Accessed 17 Oct 2023).2. World Health Organisation Influenza factsheet No. 211, April 2009. Accessed 9 October 2014.
