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US Remains Conservative On Vaccine Dosing Regimens As CDC’s ACIP Highlights Minimal Comfort With Relying On Unproven Correlates

Executive Summary

The Center for Disease Control and Prevention’s Advisory Committee on Immunization Practices concerns about making COVID-19 vaccine dose regimen changes based on unproven immune correlates of protection could be a warning sign to sponsors about roadblocks they might face if updating vaccines to address viral variants or conducting pediatric studies relying on such surrogate endpoints.

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