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5 votes
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 he built up?

asked
User Udibr
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8.2k points

2 Answers

3 votes

Answer:

A

Step-by-step explanation:

have a nice day

answered
User Xhens
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8.7k points
2 votes

Answer:

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

Step-by-step explanation:

answered
User Nikolay Tsonev
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8.2k points