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What is the difference between the nasal spray and the flu shot?

April 26, 2017difference flu nasal shot spray

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What is the difference between the nasal spray and the flu shot?

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The injectable vaccine or flu shot is made from a killed influenza virus that is highly purified and broken into tiny pieces. It cannot recombine in the body to produce flu, but it can still stimulate the immune system to develop a protective response.