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Flu Symptoms:

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Intradermal Quadrivalent vaccine or Fluzone High-Dose vaccine.

Flu Symptoms:

Know what to look for

Image: Flu Symptoms: Know What to Look For

What is the flu?

The flu — also called influenza — is caused by a virus that causes local epidemics as well as epidemics throughout the world.1,2 In the United States, flu season typically begins in the fall.1,2 It's recommended that everyone 6 months of age and older, with rare exception, gets an annual flu vaccine.3,4

The most common symptoms of influenza include1,2,5:

  • Fever (usually 101°F to 102°F)

  • Sore throat

  • Headache

  • Fatigue

  • Muscle aches

These symptoms can last anywhere from a few days to 2 weeks, and sometimes longer, before recovery sets in.2,6

Is it the flu or the common cold?

While milder than the flu, the common cold — mostly caused by the rhinovirus — is an upper respiratory infection that affects millions in the United States each year.7,8 Like influenza, the common cold is most prevalent later in the fall months and late in the spring.7

Keep in mind, while flu symptoms may seem similar to those of the common cold, influenza is a more serious disease and has been associated with 3000 to 49,000 deaths annually in recent years.9 Also, flu symptoms can appear very abruptly compared to the slower onset of symptoms from the common cold.1,10

Compare flu symptoms to symptoms of the common cold below.

Influenza10 Common Cold10
  • Symptoms are usually more severe

  • Almost always have a fever

  • Entire body feels sick

  • Body ache and headache can be severe

  • Tiredness and weakness

  • Symptoms are usually less severe

  • Rarely have a fever

  • Feel sick in nose and head

  • Usually mild body ache and headaches

  • Possible tiredness and weakness

Knowing the difference between the flu and the common cold is important, but keep in mind that your doctor is the best source of information. Your doctor can help properly diagnose your symptoms and may be able to offer some treatment options for the flu.

Where can I learn more?

Visit the websites below to learn more about the flu:

WebMD — Influenza (Seasonal Flu): Topic Overview

Centers for Disease Control and Prevention — Seasonal Influenza: Flu Basics

Flu.gov — Know What to Do About the Flu

There’s a Fluzone vaccine for you.

There’s a Fluzone vaccine for you.


There’s a Fluzone vaccine for you.

Important Safety Information

Indication

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

Fluzone Quadrivalent vaccine is given to people 6 months of age and older. Fluzone Intradermal Quadrivalent vaccine is given to people 18 through 64 years of age. Fluzone High-Dose vaccine is given to people 65 years of age and older.

Safety Information

Side effects to Fluzone Quadrivalent, Fluzone Intradermal Quadrivalent, and Fluzone High-Dose vaccines include pain and swelling at the injection site (also itching at the injection site and shivering in adults receiving Fluzone Intradermal Quadrivalent vaccine); muscle aches, fatigue, and headache (also irritability, abnormal crying, drowsiness, appetite loss, vomiting, and fever in young children receiving Fluzone Quadrivalent vaccine). Itching, redness, swelling, and firmness at the injection site have occurred more frequently with vaccine administered into the skin compared to vaccine administered into the muscle. Other side effects may occur.

Fluzone Quadrivalent, Fluzone Intradermal Quadrivalent, 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 Quadrivalent, Fluzone Intradermal Quadrivalent, or Fluzone High-Dose vaccine may not protect all individuals.

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

References

  1. Hamborsky J, Kroger A, Wolfe C. Influenza. In: Hamborsky J, Kroger A, Wolfe C, eds. Epidemiology and Prevention of Vaccine-Preventable Diseases (The Pink Book). 13th ed. Washington, DC: Public Health Foundation; 2015:187—208.
  2. Treanor JJ. Influenza viruses, including avian influenza and swine influenza. In: Mandell GL, Bennett JE, Dolin R, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, PA: Churchill Livingstone Elsevier; 2010:2265—2288.
  3. Centers for Disease Control and Prevention (CDC). Recommended immunization schedules for persons aged 0 through 18 years — United States, 2015. http://www.cdc.gov/vaccines/schedules/downloads/child/0-18yrs-child-combined-schedule.pdf. Accessed June 10, 2015.
  4. CDC. Recommended adult immunization schedule: United States — 2015. http://www.cdc.gov/vaccines/schedules/downloads/adult/adult-combined-schedule.pdf. Accessed June 10, 2015.
  5. Dolin R. Influenza. In: Fauci AS, Braunwald E, Kasper DL, et al, eds. Harrison's Principles of Internal Medicine. 17th ed. New York, NY: McGraw Hill; 2008:1127—1132.
  6. Wright PF. Influenza viruses. In: Kliegman RM, Stanton BF, St. Geme JW III, Schor NF, Behrman RE, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, PA: Elsevier/Saunders; 2011:1121—1124.
  7. Turner RB. The common cold. In: Mandell GL, Bennett JE, Dolin R, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, PA: Churchill Livingstone Elsevier; 2011:809—813.
  8. Steele RW: Respiratory infections. In: Steele RW. Clinical handbook of pediatric infectious disease. 3rd ed. New York: Informa Healthcare USA; 2007:109–124.
  9. CDC. Estimates of deaths associated with seasonal influenza—United States, 1976-2007. MMWR. 2010;59(33):1057—1062.
  10. Massachusetts Department of Health. Cold versus Flu: How to Tell the Difference. 2011. http://www.mass.gov/eohhs/docs/dph/cdc/flu/cold-flu-comparison.pdf. Accessed June 16, 2015.

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