Akio just got over having the flu. His brother just got the flu. His parents are not worried about Akio getting it again because he built up an immunity to this flu strain. Which explains the type of immunity

asked Apr 6, 2021 130k views

5 votes

by Udibr

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3 votes

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have a nice day

Xhens answered Apr 7, 2021

by Xhens

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2 votes

Answer:

active because he built up antibodies due to exposure to the flu

Step-by-step explanation:

Nikolay Tsonev answered Apr 11, 2021

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