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A member asked:
Had my 2nd pfizer vaccine shot 4 days ago, only side effect i had was arm pain day of, and fatigue next day. does this indicate i have a bad immune system based on my age? also, is there a "incubation"period for vaccine?
10 doctors weighed in across 3 answers
The reaction listed is rather common and well within the pattern of those that showed 96% effectiveness on the initial studies. It takes 2-3 weeks for any immunization to generate protective levels of antibodies with the initial dose.
Answered 5/19/2021
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No your symptoms do not indicate that you have a poor immune system. The "incubation period" is considered 2 weeks. Stay healthy and hydrated. Try to avoid contact with someone that is known to to have Covid19.
Answered 5/19/2021
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You are fine. Don't worry. We don't measure the antibody response by the severity of immediate symptoms.
Answered 5/19/2021
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