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  • Before the flu season, some people, like healthcare professionals and teachers, get flu .
Question 1:
Before the flu season, some people, like healthcare professionals and teachers, get flu ....... in order to stave*^*off infections that they might come into contact with at work.
A. tonics
B. solutions
C. vaccines
D. teas

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Real Life: Cold and Flu Terms (2) | C1 – Advanced