For people 65 years and older, there are three flu vaccines that are preferentially recommended over other flu vaccines: Fluzone High-Dose Quadrivalent inactivated flu vaccine, FluBlok Quadrivalent recombinant flu vaccine, and Fluad Quadrivalent adjuvanted inactivated flu vaccine.

Fluzone Quadrivalent, Flublok Quadrivalent, and Fluzone High-Dose Quadrivalent are vaccines indicated for active immunization against disease caused by influenza A subtype viruses and type B viruses contained in the vaccine. Fluzone Quadrivalent is approved for use in persons 6 months of age and older.

Get the proven protection of a Sanofi flu vaccine. Find Your Sanofi Flu Vaccine. FLUBLOK ® QUADRIVALENT and FLUZONE ® HIGH-DOSE QUADRIVALENT are indicated for immunization against disease caused by influenza A and B strains contained in the vaccine.

The senior flu shot contains four times as much flu virus antigen, which stimulates a boosted immune response, compared to the regular flu shot.

Federal health officials recommend specific flu vaccines for people age 65 and older. These vaccines are Fluzone High-Dose Quadrivalent, Flublock Quadrivalent, and Fluad Quadrivalent. Studies have shown they trigger a better immune response in older adults than the traditional flu vaccine.

CDC recommends annual vaccination for everyone 6 months and older with any licensed, age-appropriate flu vaccine with no preference expressed for one vaccine over another. “You are older than 65 years and that puts you at high risk of being hospitalized or dying from flu.

For those younger than 65, the CDC does not recommend a particular flu vaccine over another, but for those over 65, three types of flu vaccines are advised: Fluad ® Quadrivalent, Flublok ® Quadrivalent Recombinant, or Fluzone ® High-Dose Quadrivalent.

There are 3 recommended vaccines:

• Fluzone High-Dose Quadrivalent vaccine.
• Flublok Quadrivalent recombinant flu vaccine.
• Fluad Quadrivalent adjuvanted flu vaccine.

The flu shot protects against the influenza virus for about six months. The CDC recommends adults get the annual flu shot in September or October. Children under age 8 who need two doses of the vaccine should get the first in the series in July or August.

Fluad Quadrivalent, also an inactivated vaccine approved for people 65 and older, has the same amount of antigen as the standard shots but contains an adjuvant, or an ingredient added to a vaccine that helps create a stronger immune response to vaccination.

The higher dose of antigen in the vaccine is intended to give people 65 years and older a better immune response to vaccination, and therefore, better protection against flu.

CDC recommends that everyone 6 months of age and older get a seasonal flu vaccine each year by the end of October if possible. However, as long as flu viruses are circulating, vaccination should continue throughout flu season, even in January or later.