Influvac® is an inactivated trivalent vaccine launched in 1962.
Influvac® contains the appropriate quantities of A and B virus strains recommended by the World Health Organization. These strains vary from year to year and therefore vaccines from previous years may not contain the current recommended virus strains.
The constituents of Influvac® for the 2018/2019 season, as recommended by the World Health Organization, are as follows:
Influenza virus surface antigens (haemagglutinin and neuraminidase) of the following strains (propagated in fertilised hens’ eggs from healthy chicken flocks) per 0.5 ml dose: