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Why did the Pfizer young kids trial fail?
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Why did the Pfizer young kids trial fail?

Katelyn Jetelina
Dec 20, 2021
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Share this post
Why did the Pfizer young kids trial fail?
yourlocalepidemiologist.substack.com

On Friday, Pfizer announced results of their Phase II/III trial in children 6 months to under 5 years of age. There were two big wins and one massive set back:

  • Wins: Vaccine was safe, so no severe events occurred. The vaccine dosage worked for kids between 6 months and under 2 years.

  • Failure: Vaccine dosage didn’t work for 2- to under 5-year-old populati…

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