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Seasonal Influenza

Influenza vaccination is recommended for everyone 6 months of age and older.
Influenza Vaccine Information
(Flu.gov web site)
Find a Flu Shot (American Lung Association Web Site)

For Parents, Families, and Individuals
What is influenza?

Protect Yourself and Your Children From The Flu: 

For Health Professionals

Composition of the 2014-15 Influenza Vaccine                               

  • A/California/7/2009 (H1N1)-like virus,
  • A/Texas/50/2012 H3N2)-like virus, and
  • B/Massachusetts/2/2012-like virus (Yamagata lineage) virus
  • and for quadrivalent vaccines - B/Brisbane/60/2008-like (Victoria lineage) virus

The Frequently Asked Questions were acquired from the Immunization Action Coalition web site "Ask the Experts" section on August 9, 2012. We thank the Immunization Action Coalition.


Frequently Asked Questions
Q: When should influenza vaccine be given?
A: You can begin offering vaccine as soon as vaccine becomes available. Early vaccination of children younger than age 9 years who are first time vaccinees can be helpful in assuring routine second doses before the influenza season begins.

Q: How long does immunity from influenza vaccine last?
A: Protection from influenza vaccine is thought to persist for a year or less because of waning antibody and because of changes in the circulating influenza virus from year to year.

Q: If an unvaccinated patient who has just recovered from a diagnosed case of influenza comes into our clinic, should we vaccinate him?
A: Yes. Influenza vaccine commonly contains three influenza vaccine virus strains; two for A viruses and one for a B virus which are prepared based on circulating viruses from the previous influenza season. Infection from one virus type does not confer immunity to other types and it would not be unusual to have exposure to more than one type during a typical influenza season. By all means, vaccinate this person!

Q: When a child needs 2 doses of influenza vaccine, can I give 1 dose of each type (injectable and nasal spray)?
A: Yes. As long as a child is eligible to receive nasal spray vaccine (i.e., is in the proper age range and health status), it is acceptable to give 1 dose of each type of influenza vaccine. The doses should be spaced at least 4 weeks apart.


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