asked 143k views
2 votes
People who get an influenza vaccine produce antibodies that protect them against being infected by the particular influenza viruses that are used in the vaccine. Which of the following explains why an influenza vaccine might be ineffective?

asked
User Fret
by
8.0k points

1 Answer

3 votes

Answer:Viruses undergo

Step-by-step explanation:

answered
User Bradheintz
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7.7k points
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