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À quoi ça sert un vaccin?
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S1 E38
·2015
What is a vaccine for? This video will show you how the vaccine works in your body. Have you ever heard of polio and tuberculosis? Do you know of other diseases that vaccines have been successful in controlling? Why is it important to be vaccinated - for yourself and for others?
Subjects:
French level:
Subjects:
French level: