Pfizer/BioNTech Vaccine Trial In Young Kids Marked By High Level Of Unblinding

 
• By Sue Sutter

The unblinding process began months before a third dose was added to the study in the 6 months-4 years group. Consequently, only about one-third of vaccine recipients in each age cohort received three doses of BNT162b2.

Car blind
Pfizer/BioNTech began lowering the blind for trial participants four months before adding a third dose. • Source: Shutterstock

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