Seasonal Influenza

Vaccination is the best method to prevent influenza. Influenza seasons are unpredictable and can be severe, even deadly. 

Influenza A and B virus cause the majority of influenza illness in the United States.  Flu vaccines have been used in the U.S. for more than 50 years. Since the early 1980s the influenza vaccines have been trivalent (three virus) vaccines, two A viruses and one B virus.  Quadrivalent influenza vaccines offer protection against four different influenza viruses: two A virus and two B viruses.   Offering the addition B virus will offer people broader protection against the influenza B viruses that circulates and causes illness each flu season.

The VFC Program offers two quadrivalent influenza vaccines for the 2013-14 Influenza Season- MedImmune FluMist ® (LAIV4) and GSK Fluarix® (IIV4).   The indications for quadrivalent flu vaccines are the same as trivalent flu vaccines.  MedImmune FluMist® is only offered in a quadrivalent formulation.  Flurix® offers Trivalent (IIV3) and quadrivalent (IIV4)

Find a complete list of Influenza Vaccine Products for the 2013-2014 Influenza Season:
Influenza VIS 2013-14
The 2013-14 influenza VISs have been posted and dated July 26, 2013. There are separate VISs for the inactivated and the live, attenuated intranasal vaccines. The “inactivated” vaccine influenza VIS may be used for all non-live virus formulations (e.g., trivalent, quadrivalent, cell-culture, recombinant, intradermal, high-dose).

Primary Changes and Updates in the ACIP 2013-14 Influenza Vaccination Recommendations


CDC Recommends Flu Vaccination |

Why Flu Vaccination Matters: Video Files
Personal Stories from Families Affected by Influenza

More than 20,000 children are hospitalized each year because of influenza.  Click here to watch a CDC video documentary featuring parents who have lost a child to influenza.

CDC Video Documentary Transcript (.pdf)

Information for schools and child care providers

Information for health professionals

The best way to prevent the flu is by getting a flu shot each year.

In the United States, seasonal influenza disease (also known as “the flu”) occurs during the late fall through early spring seasons. Every year, an average 5% to 20% of the population gets the flu; more than 200,000 people are hospitalized from flu complications, and about 36,000 people die from flu. Some people, such as older people, young children, and people with certain health conditions, are at high risk for serious flu complications.

In addition to getting the flu vaccine, you should take these steps to avoid spreading germs:

  • Cover your nose and mouth with a tissue when you cough or sneeze. Throw the tissue in the trash after you use it.
  • Wash your hands often with soap and water, especially after you cough or sneeze. Alcohol-based hand cleaners are also effective.
  • Try to avoid close contact with sick people.
  • If you get the flu, stay home from work or school and limit contact with others to keep from infecting them.
  • Avoid touching your eyes, nose or mouth. Germs spread this way.

Influenza Disease Surveillance |

Download Flu Materials