Vaccine Info

Flublok Quadrivalent Influenza Vaccine


Flublok Quadrivalent is a quadrivalent recombinant influenza vaccine. Flublok Quadrivalent consists of the four influenza strains that have been identified to be the most likely strains for the flu season. A recombinant flu vaccine is produced using a method which does not require an egg-grown vaccine virus and does not use chicken eggs in the production process. 


Flublok Quadrivalent is indicated for active immunization for the prevention of influenza disease caused by influenza A subtype viruses and type B virus(es) contained in each vaccine. Flublok Quadrivalent vaccine is approved for use in persons 18 years of age and older.


Flublok Quadrivalent is administered as an intramuscular (IM) injection.

September 30th, 2019