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How long does pfizer vaccine takes effect after one shot?

3 Answers

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  • Sumi
    Lv 7
    2 weeks ago

    According to this article, the Pfizer shot *(not really a vaccine) is 90% effective for up to three weeks:  https://www.usnews.com/news/health-news/articles/2...

    You'd get more and better responses if you move this question out of the photography section and into one that's more appropriate.

  • 2 weeks ago

    Do you have a picture?

  • 2 weeks ago

    Two/three weeks.

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