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How does the nasal spray flu vaccine work?

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The spray causes your immune system to make proteins in your blood and in your nose that help you fight the virus. Your nose is where the flu virus normally enters your body.

SOURCES: CDC: "Influenza (Flu) Q&A: The Nasal-Spray Flu Vaccine." National Institute of Allergy and Infectious Diseases: "Understanding Flu Prevention." Medline Plus: "Flu." Medline Plus: "Common Cold."



Reviewed by Jennifer Robinson on August 08, 2018

SOURCES: CDC: "Influenza (Flu) Q&A: The Nasal-Spray Flu Vaccine." National Institute of Allergy and Infectious Diseases: "Understanding Flu Prevention." Medline Plus: "Flu." Medline Plus: "Common Cold."



Reviewed by Jennifer Robinson on August 08, 2018

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How do you take the nasal spray flu vaccine?

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