Recommended composition of influenza vaccines for use in the 2018 southern hemisphere influenza season
The World Health Organisation (WHO) recommended in its recent report (dated 28 September 2017) that trivalent (3-strain) influenza vaccines for use in the 2018 southern hemisphere influenza season contain the following influenza vaccine viruses:
an A/Michigan/45/2015 (H1N1)pdm09-like virus
an A/Singapore/INFIMH-16-0019/2016 (H3N2)-like virus; and
a B/Phuket/3073/2013-like virus (from the influenza B/Yamagata lineage vaccine virus).
In addition, WHO has recommended that quadrivalent (4-strain) influenza vaccines containing two influenza B viruses, contain all of the above three …READ MORE