The World Health Organization (WHO) recommended quadrivalent influenza vaccines to be used in the 2017/2018 season should comprise:
- A/Michigan/45/2015 (H1N1)pdm09-like virus;
- A/Hong Kong/4801/2014 (H3N2)-like virus;
- B/Brisbane/60/2008-like virus;
- B/Phuket/3073/2013-like virus