Which are outstanding tetravalent vaccines even for the young?

As the new era of tetravalent influenza vaccines started after trivalent vaccines, the industry is paying attention to the rivalry between GSK’s Fluarix Tetra Prefilled Syringe and Sanofi-Pasteur’s Vaxigrip Tetra.

The biggest difference between tetravalent and trivalent vaccines is the number of viruses available for prevention. Tetravalent influenza vaccine only includes two influenza A virus...