Flu Vaccine Q&A

What are the practical differences between the flu vaccines available?

Currently, the CDC does not recommend one flu vaccine over any other. The biggest difference between available flu vaccines for adults is whether they contain three or four strains of the virus. There is also a vaccine available to seniors age 65 and older that contains a higher dose. Some vaccines are sprayed into the nose, but most are injected into a muscle in the arm. While most vaccines are manufactured with eggs, newer vaccines are available for those with egg allergies. Check this link out for the full answer from Stephen Lozano, PharmD, BCACP.

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Review Date: 
September 22, 2015

Last Updated:
September 24, 2015