結果 : how long is flu vaccine in your system
1:22

The Flu Shot Explained

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How Long Does It Take for the Flu Vaccine to Work? - Explained by Flu Xpress

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1:01

How Long Does Flu Shot Protection Last?

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0:43

What are side effects of the flu shot?

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How Long Should I Wait To Get Flu Shot After COVID Vaccine?

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2:00

A day-by-day look at how the flu infects your body

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How Long Are You Contagious With The Flu?

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How often should you get a flu shot? - Melvin Sanicas

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The flu vaccine: explained

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How Does The Flu Vaccine Create An Immune Response? - Influenza Relief Guide

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What Is The Universal Flu Vaccine Race? - All About the Immune System

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Scientists working on 'universal' flu vaccine that could last years

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How Does the flu Vaccine Work?

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King of the Viruses: What Flu Does to the Body

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When's the best time to get your flu shot?

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When is the best time to get a flu vaccination?

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