Bill first had the influenza vaccine in October.He experienced a headache,achiness,fatigue,and a fever.When he came into contact with the influenza virus a few months later,he hardly had any symptoms at all.Explain these two different immune responses seen with each exposure to the virus.

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The Answer of Bill first had the influenza vaccine in October.He experienced a headache,achiness,fatigue,and a fever.When he came into contact with the influenza virus a few months later,he hardly had any symptoms at all.Explain these two different immune responses seen with each exposure to the virus.

Bill First Had the Influenza Vaccine in October