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Sanofi Pasteur: The vaccines division of Sanofi-Aventis group

Flu Facts:

How much do you know about the flu?

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Intradermal or Fluzone High-Dose vaccine

Flu Facts:

How much do you know about the flu?

Image: Flu Facts: How Much Do You Really Know About the Flu?

"The flu." "Flu season." "Flu shots." To many people, these are common terms, but how much do you really know about the flu? This section offers you facts about flu symptoms, flu treatment, and the flu shot to help you prepare for this flu season.

Flu Symptoms

Is it the flu or the common cold? Get to know the symptoms of the flu with these helpful facts. Learn about flu symptoms

Flu Treatment

Already feeling the symptoms of the flu? Get some useful pointers for treating your symptoms and some best practices for not spreading the flu to those around you. Learn about flu treatment

About the Flu Shot

Time to get vaccinated? Check out these frequently asked questions about the flu shot. Learn about the flu shot

There’s a Fluzone vaccine for you.

There’s a Fluzone vaccine for you.

There’s a Fluzone vaccine for you.

Important Safety Information


Fluzone, Fluzone Intradermal, and Fluzone High-Dose vaccines are given to help prevent influenza disease caused by influenza A and B strains contained in each vaccine.

Fluzone vaccine is intended for persons 6 months of age and older. Fluzone Intradermal vaccine is intended for persons 18 through 64 years of age. Fluzone High-Dose vaccine is intended for persons 65 years of age and older.

Approval of Fluzone High-Dose vaccine is based on superior immune response relative to Fluzone vaccine. Data demonstrating a decrease in influenza disease after vaccination with Fluzone High-Dose vaccine relative to Fluzone vaccine are not available.

Safety Information

Side effects to Fluzone and Fluzone High-Dose vaccines include pain, redness, and swelling at the injection site; muscle aches, fatigue, headache, and fever (irritability, abnormal crying, drowsiness, appetite loss, and vomiting in young children receiving Fluzone vaccine). Redness, firmness, swelling, and itching at the injection site occur more frequently with Fluzone Intradermal vaccine than with Fluzone vaccine. Other side effects to Fluzone Intradermal vaccine include pain at the injection site. Other side effects may occur. Fluzone, Fluzone Intradermal, and Fluzone High-Dose vaccines should not be administered to anyone with a severe allergic reaction (eg, anaphylaxis) to any vaccine component, including eggs, egg products, or thimerosal (the multidose vial is the only presentation containing thimerosal), or to a previous dose of any influenza vaccine.

Tell the doctor if you/your child has ever experienced Guillain-Barré syndrome (severe muscle weakness) after a previous dose of influenza vaccine. If you notice any other problems or symptoms following vaccination, please contact your health care professional immediately. Vaccination with Fluzone, Fluzone Intradermal, or Fluzone High-Dose vaccine may not protect all individuals.

For more information about Fluzone, Fluzone Intradermal, and Fluzone High-Dose vaccines, talk to your health care professional and see complete Patient Information.


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