What’s Inside a Flu Shot? | What’s Inside

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Each year the World Health Organization determines which of the thousands of influenza variants are most likely to circulate. Flu vaccines then use these variants at the starting point when developing the annual flu shot. Find out what’s inside the influenza-warding shot.
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What’s Inside a Flu Shot? | What’s Inside

Animation by Lukas Vojir
Voiceover by Lisa Kowalski

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