This is a quadrivalent flu vaccine


For a more detailed explanation of some of the ingredients, see this article: https://www.wired.com/2014/11/whats-inside-flu-shot/


Active ingredients:

Inactive influenza virus from 4 serotypes

  • H1N1

  • H3N2

  • Victoria lineage

  • Yamagata lineage

Inactive ingredients:

Relevant Terms

  • Emulsifier: a substance that helps to keep the ingredients mixed together

  • Quadrivalent: protects against four different serotypes of the pathogen (in this case, influenza virus)

  • Serotype: a group of strains within a species that share a particular type of surface structure