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Flu Nasal Aerosol (vaccine) for prevention of Flu in healthy Children

  • -  Tooltip icon - Capsule icon


    Bottom Line

  • Flu nose spray vaccine with “live” (weakened) viruses. 75 studies conducted, with 300,000 children. Prevents 1 flu case in 6 vaccinated children, and 1 influenza-like-illness in 12 vaccinated children. Does not prevent flu complications. Strong side effects. Known serious harms.

    • -  Evidence icon EVIDENCE | WELL TESTED
    • -  Effectiveness icon EFFECTIVENESS | EFFECTIVE
    • -  Safety Circle icon SAFETY | DANGEROUS -  Tooltip icon Consult a Doctor


Do not use this treatment:

It prevent flu infection in 17% of the vaccinated children, but it does not seem to prevent complications. It has Strong side effects, known serious harms and high risk potential.

Doctors Say That -  Tooltip icon

Note that the information here relates only to HEALTHY children. Flu vaccines are, for example, essential for asthmatic children.

About Flu Nasal Aerosol (vaccine)

Flu nose spray vaccine with “live” (weakened) viruses

  • - Population icon

    Target Population:

    healthy Children, 2 to 16 years old

  • - Dosage icon


    Seasonal vaccine (once a year). 0.2 mL. One dose or (sometimes, for children 2-8 years old) two doses at least 1 month apart.

  • - Goal icon


    Prevention of Influenza infection, symptoms and complications.

Research Summary

  • - Green Pages icon Well tested
  • 75 Clinical Studies
  • 300,000 - Tooltip icon Children Tested
  • Effective
  • Benefits:

    Prevents 1 case of influenza infection when the vaccine is given to 6 children. Prevent 1 influenza-like-illness (including similar symptoms due to other viruses and causes) when the vaccine is given to 12 children. Does not prevent complications.

  • - Safety icon Dangerous
  • Risks:

    Unclear. Extensive reporting bias. Strong side effects: runny nose, cough, headache, fever, nausea, diarrhea, muscle aches. Known serious harms (such as febrile convulsions, cataplexy and narcolepsy) in specific cases.

Influenza virus infection Overview

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    Medical problem:

    Flu (influenza virus infection and symptoms).

  • - Sumptoms icon

    Symptoms and signs:

    Cough, dizziness, fever, headache, nausea, pains, runny nose, sore throat, vomiting and aches.

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    Ear infection, lung infection, Seizures.

Additional Information

Flu Nasal Aerosol

Live attenuated influenza vaccine (LAIV) is a type of influenza vaccine in the form of a nasal spray. It is an attenuated vaccine, unlike most influenza vaccines, which are inactivated vaccines. LAIV is administered intranasally, while inactivated vaccines are administered by intramuscular injection. Both live attenuated and inactivated vaccines are typically trivalent, since they contain material from three different influenza virus. LAIV is sold under the trade name FluMist in the United States and Canada. (source)

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