- an A/California/7/2009 (H1N1)pdm09-like virus
- an A/Texas/50/2012 (H3N2)-like virus
- a B/Massachusetts/2/2012-like virus
The quadrivalent vaccines are recommended to containing 2 influenza B
viruses including the 3 viruses above and a B/Brisbane/60/2008-like
virus.
For the complete recommendation, please click here.
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