NIAID

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January 5, 2022

NIAID Letter to Mix & Match Trial Participants

We now have early results from the participants who received their original COVID-19 vaccine regimen before they joined the study, then got a COVID-19 booster dose during the trial of either the Moderna vaccine (standard 100 mcg dose), the Janssen vaccine, or the Pfizer-BioNTech vaccine.

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