A quadrivalent flu shot using an adjuvantР’В (an ingredient that helps create a stronger immune response), Fluad Quadrivalent, approved for people 65 years of age and older.Recombinant quadrivalent influenza shotР’В (Flublok Quadrivalent), an egg-free vaccine, approved for people 18 years and older.A quadrivalent cell-based influenza shotР’В (Flucelvax Quadrivalent) containing virus grown in cell culture, which is licensed for people 4 years and older.One quadrivalent influenza shot (Afluria Quadrivalent) can be given either with a needle (for people aged 6 months and older) or with a jet injector (for people aged 18 through 64 years only). Most influenza shots are given in an arm muscle with a needle. These four vaccines are approved for people 6 months of age and older. Different influenza shots are licensed for different age groups.

These include Afluria Quadrivalent, Fluarix Quadrivalent, FluLaval Quadrivalent, and Fluzone Quadrivalent. Standard-dose quadrivalent influenza shotsР’В that are manufactured using virus grown in eggs.No preference is expressed for any influenza vaccine over another. Available influenza vaccines include quadrivalent inactivated influenza vaccine, recombinant influenza vaccine, or live attenuated influenza vaccine (LAIV4). CDC recommends use of any licensed, age-appropriate influenza vaccine during the 2021-2022 influenza season.

Flu shot