Why must a person receive a different flu vaccine each year to be protected against the flu?
1 answer:
OK so basically the flu shot is a virus itself and we need a different one each time so that we do not become immune.
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the answer could be Alzheimer's Disease
but i would need more information
Explanation:
Answer:
D. Oxygen consumption
Explanation:
I took the quiz
An adult from a community agency, talking to your parents, or even someone at school or with a counselor.
I also thing it's all of the above but I have a doubt. Do some research to make sure
