Biology, 26.04.2021 02:20 talanna394

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?
OA.
The antibodies that were developed in response to the vaccine are gradually flushed from the person's immune system.
OB. The DNA of the person who was vaccinated
undergoes random genetic changes that can result in the antibodies being
destroyed, so the immune system does not recognize the viruses.
OC. The antibodies that were developed in response to the vaccine change shape and no longer recognize subsequent
generations of the viruses.
OD
Viruses undergo random genetic changes that can result in antibodies no longer recognizing some individual viruses,
and this resistance can be passed to subsequent generations
no

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